38628031 has 16 divisors (see below), whose sum is σ = 42835968. Its totient is φ = 34610400.

The previous prime is 38628001. The next prime is 38628053. The reversal of 38628031 is 13082683.

It is a cyclic number.

It is not a de Polignac number, because 38628031 - 2⁵ = 38627999 is a prime.

It is a super-2 number, since 2×38628031² = 2984249557873922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38627984 and 38628002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38628001) 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, 116536 + ... + 116866.

It is an arithmetic number, because the mean of its divisors is an integer number (2677248).

Almost surely, 2^38628031 is an apocalyptic number.

38628031 is a deficient number, since it is larger than the sum of its proper divisors (4207937).

38628031 is a wasteful number, since it uses less digits than its factorization.

38628031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 38628031 is about 6215.1452919461. The cubic root of 38628031 is about 338.0395568937.

The spelling of 38628031 in words is "thirty-eight million, six hundred twenty-eight thousand, thirty-one".