38735231 has 4 divisors (see below), whose sum is σ = 41013792. Its totient is φ = 36456672.

The previous prime is 38735227. The next prime is 38735251. The reversal of 38735231 is 13253783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38735231 - 2² = 38735227 is a prime.

It is a super-2 number, since 2×38735231² = 3000836241246722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38735251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1139255 + ... + 1139288.

It is an arithmetic number, because the mean of its divisors is an integer number (10253448).

Almost surely, 2^38735231 is an apocalyptic number.

38735231 is a deficient number, since it is larger than the sum of its proper divisors (2278561).

38735231 is a wasteful number, since it uses less digits than its factorization.

38735231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278560.

The product of its digits is 15120, while the sum is 32.

The square root of 38735231 is about 6223.7634113131. The cubic root of 38735231 is about 338.3519756985.

The spelling of 38735231 in words is "thirty-eight million, seven hundred thirty-five thousand, two hundred thirty-one".