456431890 has 16 divisors (see below), whose sum is σ = 835047000. Its totient is φ = 179579520.

The previous prime is 456431887. The next prime is 456431893. The reversal of 456431890 is 98134654.

It is an interprime number because it is at equal distance from previous prime (456431887) and next prime (456431893).

It can be written as a sum of positive squares in 4 ways, for example, as 358837249 + 97594641 = 18943^2 + 9879^2 .

It is not an unprimeable number, because it can be changed into a prime (456431893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373515 + ... + 374734.

Almost surely, 2^456431890 is an apocalyptic number.

456431890 is a deficient number, since it is larger than the sum of its proper divisors (378615110).

456431890 is a wasteful number, since it uses less digits than its factorization.

456431890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748317.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 456431890 is about 21364.2666618819. The cubic root of 456431890 is about 769.9431509162.

The spelling of 456431890 in words is "four hundred fifty-six million, four hundred thirty-one thousand, eight hundred ninety".