389750720 has 56 divisors (see below), whose sum is σ = 960120000. Its totient is φ = 150520832.

The previous prime is 389750717. The next prime is 389750741. The reversal of 389750720 is 27057983.

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, 11720 + ... + 30279.

It is an arithmetic number, because the mean of its divisors is an integer number (17145000).

Almost surely, 2^389750720 is an apocalyptic number.

It is an amenable number.

389750720 is an abundant number, since it is smaller than the sum of its proper divisors (570369280).

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

389750720 is a wasteful number, since it uses less digits than its factorization.

389750720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42045 (or 42035 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 389750720 is about 19742.1052575454. The cubic root of 389750720 is about 730.4586596585.

The spelling of 389750720 in words is "three hundred eighty-nine million, seven hundred fifty thousand, seven hundred twenty".