38421856 has 36 divisors (see below), whose sum is σ = 83153196. Its totient is φ = 17462720.

The previous prime is 38421841. The next prime is 38421893. The reversal of 38421856 is 65812483.

It is a happy number.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1090 + ... + 8833.

It is an arithmetic number, because the mean of its divisors is an integer number (2309811).

Almost surely, 2^38421856 is an apocalyptic number.

It is an amenable number.

38421856 is an abundant number, since it is smaller than the sum of its proper divisors (44731340).

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

38421856 is a wasteful number, since it uses less digits than its factorization.

38421856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9955 (or 9936 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 38421856 is about 6198.5366014891. The cubic root of 38421856 is about 337.4370611488.

The spelling of 38421856 in words is "thirty-eight million, four hundred twenty-one thousand, eight hundred fifty-six".