453123720 has 160 divisors (see below), whose sum is σ = 1740657600. Its totient is φ = 103565952.

The previous prime is 453123701. The next prime is 453123731. The reversal of 453123720 is 27321354.

It is a super-2 number, since 2×453123720² = 410642211253276800, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12691 + ... + 32669.

It is an arithmetic number, because the mean of its divisors is an integer number (10879110).

Almost surely, 2^453123720 is an apocalyptic number.

453123720 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 453123720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (870328800).

453123720 is an abundant number, since it is smaller than the sum of its proper divisors (1287533880).

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

453123720 is a wasteful number, since it uses less digits than its factorization.

453123720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20009 (or 19996 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 453123720 is about 21286.7028917115. The cubic root of 453123720 is about 768.0784831903.

The spelling of 453123720 in words is "four hundred fifty-three million, one hundred twenty-three thousand, seven hundred twenty".