451722480 has 160 divisors (see below), whose sum is σ = 1535044608. Its totient is φ = 108979200.

The previous prime is 451722463. The next prime is 451722493. The reversal of 451722480 is 84227154.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1047865 + ... + 1048295.

Almost surely, 2^451722480 is an apocalyptic number.

451722480 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 451722480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767522304).

451722480 is an abundant number, since it is smaller than the sum of its proper divisors (1083322128).

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

451722480 is a wasteful number, since it uses less digits than its factorization.

451722480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 451722480 is about 21253.7639019539. The cubic root of 451722480 is about 767.2859302462.

The spelling of 451722480 in words is "four hundred fifty-one million, seven hundred twenty-two thousand, four hundred eighty".