457461021 has 16 divisors (see below), whose sum is σ = 626362688. Its totient is φ = 296870400.

The previous prime is 457460977. The next prime is 457461031. The reversal of 457461021 is 120164754.

It is not a de Polignac number, because 457461021 - 2¹⁰ = 457459997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 457461021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457461031) 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, 4866 + ... + 30636.

It is an arithmetic number, because the mean of its divisors is an integer number (39147668).

Almost surely, 2^457461021 is an apocalyptic number.

It is an amenable number.

457461021 is a deficient number, since it is larger than the sum of its proper divisors (168901667).

457461021 is a wasteful number, since it uses less digits than its factorization.

457461021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25932.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 457461021 is about 21388.3384347639. The cubic root of 457461021 is about 770.5213880335.

The spelling of 457461021 in words is "four hundred fifty-seven million, four hundred sixty-one thousand, twenty-one".