42693156 has 105 divisors (see below), whose sum is σ = 123219355. Its totient is φ = 12937320.

The previous prime is 42693151. The next prime is 42693163. The reversal of 42693156 is 65139624.

It is a happy number.

The square root of 42693156 is 6534.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

Its product of digits (38880) is a multiple of the sum of its prime divisors (16).

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 42693156.

It is not an unprimeable number, because it can be changed into a prime (42693151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 34 ways as a sum of consecutive naturals, for example, 3881191 + ... + 3881201.

Almost surely, 2^42693156 is an apocalyptic number.

42693156 is the 6534-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42693156

42693156 is an abundant number, since it is smaller than the sum of its proper divisors (80526199).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42693156 is an frugal number, since it uses more digits than its factorization.

42693156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 16 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The cubic root of 42693156 is about 349.5044851973.

Multiplying 42693156 by its sum of digits (36), we get a 4-th power (1536953616 = 198⁴).

42693156 divided by its sum of digits (36) gives a 4-th power (1185921 = 33⁴).

It can be divided in two parts, 42693 and 156, that added together give a square (42849 = 207²).

The spelling of 42693156 in words is "forty-two million, six hundred ninety-three thousand, one hundred fifty-six".