38965986 has 24 divisors (see below), whose sum is σ = 84612060. Its totient is φ = 12960096.

The previous prime is 38965963. The next prime is 38966021. The reversal of 38965986 is 68956983.

It can be written as a sum of positive squares in 2 ways, for example, as 38825361 + 140625 = 6231^2 + 375^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7036 + ... + 11288.

Almost surely, 2^38965986 is an apocalyptic number.

38965986 is an abundant number, since it is smaller than the sum of its proper divisors (45646074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38965986 is a wasteful number, since it uses less digits than its factorization.

38965986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770 (or 4767 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 38965986 is about 6242.2741048435. The cubic root of 38965986 is about 339.0225270226.

The spelling of 38965986 in words is "thirty-eight million, nine hundred sixty-five thousand, nine hundred eighty-six".