38456431 has 16 divisors (see below), whose sum is σ = 45045504. Its totient is φ = 32500224.

The previous prime is 38456423. The next prime is 38456441. The reversal of 38456431 is 13465483.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 38456431 - 2³ = 38456423 is a prime.

It is a super-2 number, since 2×38456431² = 2957794170515522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38456441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5826 + ... + 10528.

It is an arithmetic number, because the mean of its divisors is an integer number (2815344).

Almost surely, 2^38456431 is an apocalyptic number.

38456431 is a deficient number, since it is larger than the sum of its proper divisors (6589073).

38456431 is a wasteful number, since it uses less digits than its factorization.

38456431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4770.

The product of its digits is 34560, while the sum is 34.

The square root of 38456431 is about 6201.3249390755. The cubic root of 38456431 is about 337.5382482487.

The spelling of 38456431 in words is "thirty-eight million, four hundred fifty-six thousand, four hundred thirty-one".