461578431 has 16 divisors (see below), whose sum is σ = 630374400. Its totient is φ = 300312480.

The previous prime is 461578409. The next prime is 461578459. The reversal of 461578431 is 134875164.

It is not a de Polignac number, because 461578431 - 2⁷ = 461578303 is a prime.

It is a super-2 number, since 2×461578431² = 426109295928843522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 461578431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461578231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22770 + ... + 37968.

It is an arithmetic number, because the mean of its divisors is an integer number (39398400).

Almost surely, 2^461578431 is an apocalyptic number.

461578431 is a deficient number, since it is larger than the sum of its proper divisors (168795969).

461578431 is a wasteful number, since it uses less digits than its factorization.

461578431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15446.

The product of its digits is 80640, while the sum is 39.

The square root of 461578431 is about 21484.3764396363. The cubic root of 461578431 is about 772.8261975316.

The spelling of 461578431 in words is "four hundred sixty-one million, five hundred seventy-eight thousand, four hundred thirty-one".