389624380 has 12 divisors (see below), whose sum is σ = 818211240. Its totient is φ = 155849744.

The previous prime is 389624351. The next prime is 389624381. The reversal of 389624380 is 83426983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389624381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9740590 + ... + 9740629.

It is an arithmetic number, because the mean of its divisors is an integer number (68184270).

Almost surely, 2^389624380 is an apocalyptic number.

It is an amenable number.

389624380 is an abundant number, since it is smaller than the sum of its proper divisors (428586860).

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

389624380 is a wasteful number, since it uses less digits than its factorization.

389624380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19481228 (or 19481226 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 389624380 is about 19738.9052381331. The cubic root of 389624380 is about 730.3797236311.

The spelling of 389624380 in words is "three hundred eighty-nine million, six hundred twenty-four thousand, three hundred eighty".