38943920 has 40 divisors (see below), whose sum is σ = 95313840. Its totient is φ = 14757120.

The previous prime is 38943887. The next prime is 38943941. The reversal of 38943920 is 2934983.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11291 + ... + 14330.

It is an arithmetic number, because the mean of its divisors is an integer number (2382846).

Almost surely, 2^38943920 is an apocalyptic number.

It is an amenable number.

38943920 is an abundant number, since it is smaller than the sum of its proper divisors (56369920).

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

38943920 is a wasteful number, since it uses less digits than its factorization.

38943920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25653 (or 25647 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 38943920 is about 6240.5063897091. The cubic root of 38943920 is about 338.9585200565.

The spelling of 38943920 in words is "thirty-eight million, nine hundred forty-three thousand, nine hundred twenty".