42644156 has 6 divisors (see below), whose sum is σ = 74627280. Its totient is φ = 21322076.

The previous prime is 42644153. The next prime is 42644167. The reversal of 42644156 is 65144624.

42644156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42644153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5330516 + ... + 5330523.

It is an arithmetic number, because the mean of its divisors is an integer number (12437880).

Almost surely, 2^42644156 is an apocalyptic number.

It is an amenable number.

42644156 is a deficient number, since it is larger than the sum of its proper divisors (31983124).

42644156 is a wasteful number, since it uses less digits than its factorization.

42644156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10661043 (or 10661041 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 42644156 is about 6530.2493061138. The cubic root of 42644156 is about 349.3707223382.

The spelling of 42644156 in words is "forty-two million, six hundred forty-four thousand, one hundred fifty-six".