457218901 has 6 divisors (see below), whose sum is σ = 473529602. Its totient is φ = 441451920.

The previous prime is 457218887. The next prime is 457218917. The reversal of 457218901 is 109812754.

It can be written as a sum of positive squares in 3 ways, for example, as 61606801 + 395612100 = 7849^2 + 19890^2 .

It is not a de Polignac number, because 457218901 - 2⁹ = 457218389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457218991) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270990 + ... + 272671.

Almost surely, 2^457218901 is an apocalyptic number.

It is an amenable number.

457218901 is a deficient number, since it is larger than the sum of its proper divisors (16310701).

457218901 is an equidigital number, since it uses as much as digits as its factorization.

457218901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543719 (or 543690 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 457218901 is about 21382.6775919201. The cubic root of 457218901 is about 770.3854263138.

The spelling of 457218901 in words is "four hundred fifty-seven million, two hundred eighteen thousand, nine hundred one".