389393952 has 48 divisors (see below), whose sum is σ = 1023174432. Its totient is φ = 129669120.

The previous prime is 389393951. The next prime is 389393971. The reversal of 389393952 is 259393983.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 389393895 and 389393904.

It is not an unprimeable number, because it can be changed into a prime (389393951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192048 + ... + 194064.

It is an arithmetic number, because the mean of its divisors is an integer number (21316134).

Almost surely, 2^389393952 is an apocalyptic number.

389393952 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

389393952 is an abundant number, since it is smaller than the sum of its proper divisors (633780480).

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

389393952 is a wasteful number, since it uses less digits than its factorization.

389393952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041 (or 4033 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 51.

The square root of 389393952 is about 19733.0674756866. The cubic root of 389393952 is about 730.2357104596.

The spelling of 389393952 in words is "three hundred eighty-nine million, three hundred ninety-three thousand, nine hundred fifty-two".