38421800 has 48 divisors (see below), whose sum is σ = 94041600. Its totient is φ = 14558400.

The previous prime is 38421791. The next prime is 38421809. The reversal of 38421800 is 812483.

It is an interprime number because it is at equal distance from previous prime (38421791) and next prime (38421809).

It is a self number, because there is not a number n which added to its sum of digits gives 38421800.

It is not an unprimeable number, because it can be changed into a prime (38421809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1256 + ... + 8855.

It is an arithmetic number, because the mean of its divisors is an integer number (1959200).

Almost surely, 2^38421800 is an apocalyptic number.

It is an amenable number.

38421800 is an abundant number, since it is smaller than the sum of its proper divisors (55619800).

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

38421800 is a wasteful number, since it uses less digits than its factorization.

38421800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10146 (or 10137 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 38421800 is about 6198.5320842922. The cubic root of 38421800 is about 337.4368972101.

The spelling of 38421800 in words is "thirty-eight million, four hundred twenty-one thousand, eight hundred".