38379831 has 16 divisors (see below), whose sum is σ = 59309568. Its totient is φ = 21621600.

The previous prime is 38379827. The next prime is 38379839. The reversal of 38379831 is 13897383.

It is not a de Polignac number, because 38379831 - 2² = 38379827 is a prime.

It is a super-2 number, since 2×38379831² = 2946022855177122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38379839) 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, 11380 + ... + 14361.

It is an arithmetic number, because the mean of its divisors is an integer number (3706848).

Almost surely, 2^38379831 is an apocalyptic number.

38379831 is a deficient number, since it is larger than the sum of its proper divisors (20929737).

38379831 is a wasteful number, since it uses less digits than its factorization.

38379831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25822.

The product of its digits is 108864, while the sum is 42.

The square root of 38379831 is about 6195.1457609971. The cubic root of 38379831 is about 337.3139891326.

The spelling of 38379831 in words is "thirty-eight million, three hundred seventy-nine thousand, eight hundred thirty-one".