38982531 has 32 divisors (see below), whose sum is σ = 61820928. Its totient is φ = 21381120.

The previous prime is 38982529. The next prime is 38982533. The reversal of 38982531 is 13528983.

It is an interprime number because it is at equal distance from previous prime (38982529) and next prime (38982533).

It is not a de Polignac number, because 38982531 - 2¹ = 38982529 is a prime.

It is a super-2 number, since 2×38982531² = 3039275446331922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38982531.

It is not an unprimeable number, because it can be changed into a prime (38982533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151555 + ... + 151811.

It is an arithmetic number, because the mean of its divisors is an integer number (1931904).

Almost surely, 2^38982531 is an apocalyptic number.

38982531 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

38982531 is a deficient number, since it is larger than the sum of its proper divisors (22838397).

38982531 is a wasteful number, since it uses less digits than its factorization.

38982531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531.

The product of its digits is 51840, while the sum is 39.

The square root of 38982531 is about 6243.5992023832. The cubic root of 38982531 is about 339.0705033441.

The spelling of 38982531 in words is "thirty-eight million, nine hundred eighty-two thousand, five hundred thirty-one".