389458125 has 150 divisors (see below), whose sum is σ = 851076006. Its totient is φ = 176904000.

The previous prime is 389458079. The next prime is 389458129. The reversal of 389458125 is 521854983.

It can be written as a sum of positive squares in 5 ways, for example, as 193849929 + 195608196 = 13923^2 + 13986^2 .

It is not a de Polignac number, because 389458125 - 2⁹ = 389457613 is a prime.

It is a super-2 number, since 2×389458125² = 303355262257031250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389458129) by changing a digit.

It is a polite number, since it can be written in 149 ways as a sum of consecutive naturals, for example, 2480547 + ... + 2480703.

Almost surely, 2^389458125 is an apocalyptic number.

389458125 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

389458125 is an abundant number, since it is smaller than the sum of its proper divisors (461617881).

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

389458125 is an equidigital number, since it uses as much as digits as its factorization.

389458125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 172 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 389458125 is about 19734.6934356731. The cubic root of 389458125 is about 730.2758230859.

The spelling of 389458125 in words is "three hundred eighty-nine million, four hundred fifty-eight thousand, one hundred twenty-five".