453220272 has 120 divisors (see below), whose sum is σ = 1392942096. Its totient is φ = 142166016.

The previous prime is 453220259. The next prime is 453220277. The reversal of 453220272 is 272022354.

453220272 is a `hidden beast` number, since 453 + 2 + 202 + 7 + 2 = 666.

It is a super-2 number, since 2×453220272² = 410817229903507968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (453220277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62668 + ... + 69524.

Almost surely, 2^453220272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 453220272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696471048).

453220272 is an abundant number, since it is smaller than the sum of its proper divisors (939721824).

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

453220272 is a wasteful number, since it uses less digits than its factorization.

453220272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6897 (or 6879 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 453220272 is about 21288.9706655817. The cubic root of 453220272 is about 768.1330335951.

The spelling of 453220272 in words is "four hundred fifty-three million, two hundred twenty thousand, two hundred seventy-two".