38905580 has 24 divisors (see below), whose sum is σ = 93373728. Its totient is φ = 13339008.

The previous prime is 38905577. The next prime is 38905609. The reversal of 38905580 is 8550983.

38905580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×38905580³ (a number of 24 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 138809 + ... + 139088.

It is an arithmetic number, because the mean of its divisors is an integer number (3890572).

Almost surely, 2^38905580 is an apocalyptic number.

It is an amenable number.

38905580 is an abundant number, since it is smaller than the sum of its proper divisors (54468148).

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

38905580 is a wasteful number, since it uses less digits than its factorization.

38905580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277913 (or 277911 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 38905580 is about 6237.4337671834. The cubic root of 38905580 is about 338.8472494850.

The spelling of 38905580 in words is "thirty-eight million, nine hundred five thousand, five hundred eighty".