389192488 has 8 divisors (see below), whose sum is σ = 729735930. Its totient is φ = 194596240.

The previous prime is 389192483. The next prime is 389192513. The reversal of 389192488 is 884291983.

It can be written as a sum of positive squares in only one way, i.e., 326814084 + 62378404 = 18078^2 + 7898^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (389192483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24324523 + ... + 24324538.

Almost surely, 2^389192488 is an apocalyptic number.

It is an amenable number.

389192488 is a deficient number, since it is larger than the sum of its proper divisors (340543442).

389192488 is a wasteful number, since it uses less digits than its factorization.

389192488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48649067 (or 48649063 counting only the distinct ones).

The product of its digits is 995328, while the sum is 52.

The square root of 389192488 is about 19727.9620843107. The cubic root of 389192488 is about 730.1097526857.

The spelling of 389192488 in words is "three hundred eighty-nine million, one hundred ninety-two thousand, four hundred eighty-eight".