389042577 has 24 divisors (see below), whose sum is σ = 700614720. Its totient is φ = 202099680.

The previous prime is 389042561. The next prime is 389042579. The reversal of 389042577 is 775240983.

389042577 is a `hidden beast` number, since 38 + 9 + 0 + 42 + 577 = 666.

It is not a de Polignac number, because 389042577 - 2⁴ = 389042561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389042579) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280002 + ... + 281387.

It is an arithmetic number, because the mean of its divisors is an integer number (29192280).

Almost surely, 2^389042577 is an apocalyptic number.

It is an amenable number.

389042577 is a deficient number, since it is larger than the sum of its proper divisors (311572143).

389042577 is a wasteful number, since it uses less digits than its factorization.

389042577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561413 (or 561410 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 389042577 is about 19724.1622635792. The cubic root of 389042577 is about 730.0159982733.

The spelling of 389042577 in words is "three hundred eighty-nine million, forty-two thousand, five hundred seventy-seven".