38987700 has 36 divisors (see below), whose sum is σ = 112805280. Its totient is φ = 10396640.

The previous prime is 38987699. The next prime is 38987743. The reversal of 38987700 is 778983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64680 + ... + 65279.

It is an arithmetic number, because the mean of its divisors is an integer number (3133480).

Almost surely, 2^38987700 is an apocalyptic number.

38987700 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38987700 is an abundant number, since it is smaller than the sum of its proper divisors (73817580).

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

38987700 is a wasteful number, since it uses less digits than its factorization.

38987700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129976 (or 129969 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 38987700 is about 6244.0131325935. The cubic root of 38987700 is about 339.0854893556.

The spelling of 38987700 in words is "thirty-eight million, nine hundred eighty-seven thousand, seven hundred".