38438720 has 28 divisors (see below), whose sum is σ = 91532964. Its totient is φ = 15375360.

The previous prime is 38438713. The next prime is 38438737. The reversal of 38438720 is 2783483.

It can be written as a sum of positive squares in 2 ways, for example, as 22052416 + 16386304 = 4696^2 + 4048^2 .

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59741 + ... + 60380.

Almost surely, 2^38438720 is an apocalyptic number.

It is an amenable number.

38438720 is an abundant number, since it is smaller than the sum of its proper divisors (53094244).

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

38438720 is a wasteful number, since it uses less digits than its factorization.

38438720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120138 (or 120128 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 38438720 is about 6199.8967733342. The cubic root of 38438720 is about 337.4864228649.

The spelling of 38438720 in words is "thirty-eight million, four hundred thirty-eight thousand, seven hundred twenty".