457562491 has 4 divisors (see below), whose sum is σ = 459862000. Its totient is φ = 455262984.

The previous prime is 457562477. The next prime is 457562509. The reversal of 457562491 is 194265754.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 457562491 - 2⁵ = 457562459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (457562401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1149456 + ... + 1149853.

It is an arithmetic number, because the mean of its divisors is an integer number (114965500).

Almost surely, 2^457562491 is an apocalyptic number.

457562491 is a deficient number, since it is larger than the sum of its proper divisors (2299509).

457562491 is a wasteful number, since it uses less digits than its factorization.

457562491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299508.

The product of its digits is 302400, while the sum is 43.

The square root of 457562491 is about 21390.7103902605. The cubic root of 457562491 is about 770.5783539254.

The spelling of 457562491 in words is "four hundred fifty-seven million, five hundred sixty-two thousand, four hundred ninety-one".