38963720 has 32 divisors (see below), whose sum is σ = 87900120. Its totient is φ = 15544320.

The previous prime is 38963707. The next prime is 38963731. The reversal of 38963720 is 2736983.

It can be written as a sum of positive squares in 4 ways, for example, as 13823524 + 25140196 = 3718^2 + 5014^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17384 + ... + 19496.

Almost surely, 2^38963720 is an apocalyptic number.

It is an amenable number.

38963720 is an abundant number, since it is smaller than the sum of its proper divisors (48936400).

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

38963720 is a wasteful number, since it uses less digits than its factorization.

38963720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585 (or 2581 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 38963720 is about 6242.0925978393. The cubic root of 38963720 is about 339.0159551376.

The spelling of 38963720 in words is "thirty-eight million, nine hundred sixty-three thousand, seven hundred twenty".