456573921 has 16 divisors (see below), whose sum is σ = 632279040. Its totient is φ = 292746960.

The previous prime is 456573911. The next prime is 456573961. The reversal of 456573921 is 129375654.

It is not a de Polignac number, because 456573921 - 2⁹ = 456573409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (456573911) 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, 100 + ... + 30218.

It is an arithmetic number, because the mean of its divisors is an integer number (39517440).

Almost surely, 2^456573921 is an apocalyptic number.

It is an amenable number.

456573921 is a deficient number, since it is larger than the sum of its proper divisors (175705119).

456573921 is a wasteful number, since it uses less digits than its factorization.

456573921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30316.

The product of its digits is 226800, while the sum is 42.

The square root of 456573921 is about 21367.5904350491. The cubic root of 456573921 is about 770.0230054407.

The spelling of 456573921 in words is "four hundred fifty-six million, five hundred seventy-three thousand, nine hundred twenty-one".