38650431 has 4 divisors (see below), whose sum is σ = 51533912. Its totient is φ = 25766952.

The previous prime is 38650411. The next prime is 38650453. The reversal of 38650431 is 13405683.

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

It is not a de Polignac number, because 38650431 - 2¹⁷ = 38519359 is a prime.

It is a super-2 number, since 2×38650431² = 2987711632971522, 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 (38650411) 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, 6441736 + ... + 6441741.

It is an arithmetic number, because the mean of its divisors is an integer number (12883478).

Almost surely, 2^38650431 is an apocalyptic number.

38650431 is a deficient number, since it is larger than the sum of its proper divisors (12883481).

38650431 is a wasteful number, since it uses less digits than its factorization.

38650431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12883480.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 38650431 is about 6216.9470803603. The cubic root of 38650431 is about 338.1048861610.

The spelling of 38650431 in words is "thirty-eight million, six hundred fifty thousand, four hundred thirty-one".