38464431 has 4 divisors (see below), whose sum is σ = 51285912. Its totient is φ = 25642952.

The previous prime is 38464429. The next prime is 38464451. The reversal of 38464431 is 13446483.

It is a happy number.

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 38464431 - 2¹ = 38464429 is a prime.

It is a super-2 number, since 2×38464431² = 2959024904307522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38464392 and 38464401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38464451) 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, 6410736 + ... + 6410741.

It is an arithmetic number, because the mean of its divisors is an integer number (12821478).

Almost surely, 2^38464431 is an apocalyptic number.

38464431 is a deficient number, since it is larger than the sum of its proper divisors (12821481).

38464431 is a wasteful number, since it uses less digits than its factorization.

38464431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12821480.

The product of its digits is 27648, while the sum is 33.

The square root of 38464431 is about 6201.9699289822. The cubic root of 38464431 is about 337.5616523859.

The spelling of 38464431 in words is "thirty-eight million, four hundred sixty-four thousand, four hundred thirty-one".