42732393 has 16 divisors (see below), whose sum is σ = 62776512. Its totient is φ = 25640000.

The previous prime is 42732383. The next prime is 42732397. The reversal of 42732393 is 39323724.

It is a cyclic number.

It is not a de Polignac number, because 42732393 - 2⁴ = 42732377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (42732397) 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 15 ways as a sum of consecutive naturals, for example, 3078 + ... + 9743.

It is an arithmetic number, because the mean of its divisors is an integer number (3923532).

Almost surely, 2^42732393 is an apocalyptic number.

It is an amenable number.

42732393 is a deficient number, since it is larger than the sum of its proper divisors (20044119).

42732393 is a wasteful number, since it uses less digits than its factorization.

42732393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12936.

The product of its digits is 27216, while the sum is 33.

The square root of 42732393 is about 6537.0018357042. The cubic root of 42732393 is about 349.6115227165.

42732393 divided by its sum of digits (33) gives a palindrome (1294921).

It can be divided in two parts, 4273 and 2393, that added together give a palindrome (6666).

The spelling of 42732393 in words is "forty-two million, seven hundred thirty-two thousand, three hundred ninety-three".