38937944929 has 27 divisors (see below), whose sum is σ = 43289557497. Its totient is φ = 35007388416.

The previous prime is 38937944917. The next prime is 38937944957. The reversal of 38937944929 is 92944973983.

The square root of 38937944929 is 197327.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 8459768529 + 30478176400 = 91977^2 + 174580^2 .

It is not a de Polignac number, because 38937944929 - 2⁵ = 38937944897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38937944989) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 110305617 + ... + 110305969.

Almost surely, 2^38937944929 is an apocalyptic number.

38937944929 is the 197327-th square number.

38937944929 is the 98664-th centered octagonal number.

It is an amenable number.

38937944929 is a deficient number, since it is larger than the sum of its proper divisors (4351612568).

38937944929 is an frugal number, since it uses more digits than its factorization.

38937944929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 409 counting only the distinct ones).

The product of its digits is 105815808, while the sum is 67.

The spelling of 38937944929 in words is "thirty-eight billion, nine hundred thirty-seven million, nine hundred forty-four thousand, nine hundred twenty-nine".