578138431 has 24 divisors (see below), whose sum is σ = 679427840. Its totient is φ = 488581632.

The previous prime is 578138423. The next prime is 578138447. The reversal of 578138431 is 134831875.

It is not a de Polignac number, because 578138431 - 2³ = 578138423 is a prime.

It is a super-2 number, since 2×578138431² = 668488090798283522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578138401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136930 + ... + 141088.

Almost surely, 2^578138431 is an apocalyptic number.

578138431 is a deficient number, since it is larger than the sum of its proper divisors (101289409).

578138431 is a wasteful number, since it uses less digits than its factorization.

578138431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243 (or 4226 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 578138431 is about 24044.5093732436. The cubic root of 578138431 is about 833.0619140430.

The spelling of 578138431 in words is "five hundred seventy-eight million, one hundred thirty-eight thousand, four hundred thirty-one".