389454912 has 224 divisors, whose sum is σ = 1427927040. Its totient is φ = 101122560.

The previous prime is 389454907. The next prime is 389454917. The reversal of 389454912 is 219454983.

389454912 is a `hidden beast` number, since 3 + 8 + 94 + 549 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (389454907) and next prime (389454917).

It is a tau number, because it is divible by the number of its divisors (224).

It is not an unprimeable number, because it can be changed into a prime (389454917) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 131593 + ... + 134519.

Almost surely, 2^389454912 is an apocalyptic number.

389454912 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 389454912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (713963520).

389454912 is an abundant number, since it is smaller than the sum of its proper divisors (1038472128).

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

389454912 is a wasteful number, since it uses less digits than its factorization.

389454912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966 (or 2950 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 389454912 is about 19734.6120306430. The cubic root of 389454912 is about 730.2738148403.

The spelling of 389454912 in words is "three hundred eighty-nine million, four hundred fifty-four thousand, nine hundred twelve".