38868720 has 80 divisors (see below), whose sum is σ = 131455872. Its totient is φ = 9422080.

The previous prime is 38868719. The next prime is 38868727. The reversal of 38868720 is 2786883.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38868727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4722 + ... + 10001.

Almost surely, 2^38868720 is an apocalyptic number.

38868720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38868720 is an abundant number, since it is smaller than the sum of its proper divisors (92587152).

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

38868720 is a wasteful number, since it uses less digits than its factorization.

38868720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14750 (or 14744 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 38868720 is about 6234.4783262114. The cubic root of 38868720 is about 338.7402052332.

The spelling of 38868720 in words is "thirty-eight million, eight hundred sixty-eight thousand, seven hundred twenty".