38408831 has 16 divisors (see below), whose sum is σ = 41658624. Its totient is φ = 35282304.

The previous prime is 38408819. The next prime is 38408857. The reversal of 38408831 is 13880483.

38408831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38408831 - 2¹⁰ = 38407807 is a prime.

It is a super-2 number, since 2×38408831² = 2950476597573122, 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 = 38408791 and 38408800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38408891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229910 + ... + 230076.

It is an arithmetic number, because the mean of its divisors is an integer number (2603664).

Almost surely, 2^38408831 is an apocalyptic number.

38408831 is a deficient number, since it is larger than the sum of its proper divisors (3249793).

38408831 is a wasteful number, since it uses less digits than its factorization.

38408831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 38408831 is about 6197.4858612182. The cubic root of 38408831 is about 337.3989264782.

The spelling of 38408831 in words is "thirty-eight million, four hundred eight thousand, eight hundred thirty-one".