389943232 has 112 divisors (see below), whose sum is σ = 947399680. Its totient is φ = 155520000.

The previous prime is 389943223. The next prime is 389943241. The reversal of 389943232 is 232349983.

It is an interprime number because it is at equal distance from previous prime (389943223) and next prime (389943241).

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518857 + ... + 519607.

Almost surely, 2^389943232 is an apocalyptic number.

389943232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389943232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473699840).

389943232 is an abundant number, since it is smaller than the sum of its proper divisors (557456448).

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

389943232 is a wasteful number, since it uses less digits than its factorization.

389943232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 840 counting only the distinct ones).

The product of its digits is 279936, while the sum is 43.

The square root of 389943232 is about 19746.9803261157. The cubic root of 389943232 is about 730.5789065273.

The spelling of 389943232 in words is "three hundred eighty-nine million, nine hundred forty-three thousand, two hundred thirty-two".