453370021 has 16 divisors (see below), whose sum is σ = 509846400. Its totient is φ = 400252608.

The previous prime is 453370013. The next prime is 453370031. The reversal of 453370021 is 120073354.

It is a cyclic number.

It is not a de Polignac number, because 453370021 - 2³ = 453370013 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 (453370031) 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 15 ways as a sum of consecutive naturals, for example, 34720 + ... + 45958.

It is an arithmetic number, because the mean of its divisors is an integer number (31865400).

Almost surely, 2^453370021 is an apocalyptic number.

It is an amenable number.

453370021 is a deficient number, since it is larger than the sum of its proper divisors (56476379).

453370021 is a wasteful number, since it uses less digits than its factorization.

453370021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11388.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 453370021 is about 21292.4874310166. The cubic root of 453370021 is about 768.2176241679.

The spelling of 453370021 in words is "four hundred fifty-three million, three hundred seventy thousand, twenty-one".