38961956 has 24 divisors (see below), whose sum is σ = 76115424. Its totient is φ = 17297280.

The previous prime is 38961953. The next prime is 38961959. The reversal of 38961956 is 65916983.

It is an interprime number because it is at equal distance from previous prime (38961953) and next prime (38961959).

It is a self number, because there is not a number n which added to its sum of digits gives 38961956.

It is not an unprimeable number, because it can be changed into a prime (38961953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8405 + ... + 12188.

It is an arithmetic number, because the mean of its divisors is an integer number (3171476).

Almost surely, 2^38961956 is an apocalyptic number.

It is an amenable number.

38961956 is a deficient number, since it is larger than the sum of its proper divisors (37153468).

38961956 is a wasteful number, since it uses less digits than its factorization.

38961956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20651 (or 20649 counting only the distinct ones).

The product of its digits is 349920, while the sum is 47.

The square root of 38961956 is about 6241.9512974710. The cubic root of 38961956 is about 339.0108389836.

The spelling of 38961956 in words is "thirty-eight million, nine hundred sixty-one thousand, nine hundred fifty-six".