453221628 has 36 divisors (see below), whose sum is σ = 1095265080. Its totient is φ = 145861184.

The previous prime is 453221627. The next prime is 453221653. The reversal of 453221628 is 826122354.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453221623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12363 + ... + 32546.

It is an arithmetic number, because the mean of its divisors is an integer number (30424030).

Almost surely, 2^453221628 is an apocalyptic number.

It is an amenable number.

453221628 is an abundant number, since it is smaller than the sum of its proper divisors (642043452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

453221628 is a wasteful number, since it uses less digits than its factorization.

453221628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44974 (or 44943 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 453221628 is about 21289.0025130348. The cubic root of 453221628 is about 768.1337996592.

The spelling of 453221628 in words is "four hundred fifty-three million, two hundred twenty-one thousand, six hundred twenty-eight".