38399880 has 64 divisors (see below), whose sum is σ = 120216960. Its totient is φ = 9794048.

The previous prime is 38399873. The next prime is 38399909. The reversal of 38399880 is 8899383.

38399880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4197 + ... + 9716.

It is an arithmetic number, because the mean of its divisors is an integer number (1878390).

Almost surely, 2^38399880 is an apocalyptic number.

38399880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38399880 is an abundant number, since it is smaller than the sum of its proper divisors (81817080).

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

38399880 is a wasteful number, since it uses less digits than its factorization.

38399880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13950 (or 13946 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 38399880 is about 6196.7636714659. The cubic root of 38399880 is about 337.3727146901.

The spelling of 38399880 in words is "thirty-eight million, three hundred ninety-nine thousand, eight hundred eighty".