453278720 has 88 divisors (see below), whose sum is σ = 1094964864. Its totient is φ = 180043776.

The previous prime is 453278699. The next prime is 453278723. The reversal of 453278720 is 27872354.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453278723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1141562 + ... + 1141958.

Almost surely, 2^453278720 is an apocalyptic number.

453278720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 453278720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547482432).

453278720 is an abundant number, since it is smaller than the sum of its proper divisors (641686144).

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

453278720 is a wasteful number, since it uses less digits than its factorization.

453278720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 453278720 is about 21290.3433509185. The cubic root of 453278720 is about 768.1660520577.

The spelling of 453278720 in words is "four hundred fifty-three million, two hundred seventy-eight thousand, seven hundred twenty".