38875440 has 80 divisors (see below), whose sum is σ = 123349248. Its totient is φ = 10123008.

The previous prime is 38875433. The next prime is 38875453. The reversal of 38875440 is 4457883.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×38875440² = 3022599670387200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8437 + ... + 12203.

Almost surely, 2^38875440 is an apocalyptic number.

38875440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38875440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61674624).

38875440 is an abundant number, since it is smaller than the sum of its proper divisors (84473808).

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

38875440 is a wasteful number, since it uses less digits than its factorization.

38875440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826 (or 3820 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 38875440 is about 6235.0172413555. The cubic root of 38875440 is about 338.7597256686.

The spelling of 38875440 in words is "thirty-eight million, eight hundred seventy-five thousand, four hundred forty".