38668820 has 24 divisors (see below), whose sum is σ = 81328128. Its totient is φ = 15444000.

The previous prime is 38668793. The next prime is 38668843. The reversal of 38668820 is 2886683.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18845 + ... + 20795.

It is an arithmetic number, because the mean of its divisors is an integer number (3388672).

Almost surely, 2^38668820 is an apocalyptic number.

It is an amenable number.

38668820 is an abundant number, since it is smaller than the sum of its proper divisors (42659308).

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

38668820 is a wasteful number, since it uses less digits than its factorization.

38668820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951 (or 2949 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 38668820 is about 6218.4258458230. The cubic root of 38668820 is about 338.1584985427.

The spelling of 38668820 in words is "thirty-eight million, six hundred sixty-eight thousand, eight hundred twenty".