455040720 has 160 divisors (see below), whose sum is σ = 1574899200. Its totient is φ = 120761856.

The previous prime is 455040679. The next prime is 455040779. The reversal of 455040720 is 27040554.

455040720 is a `hidden beast` number, since 4 + 550 + 40 + 72 + 0 = 666.

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

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, 632521 + ... + 633239.

It is an arithmetic number, because the mean of its divisors is an integer number (9843120).

Almost surely, 2^455040720 is an apocalyptic number.

455040720 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 455040720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (787449600).

455040720 is an abundant number, since it is smaller than the sum of its proper divisors (1119858480).

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

455040720 is a wasteful number, since it uses less digits than its factorization.

455040720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 455040720 is about 21331.6834778693. The cubic root of 455040720 is about 769.1601119305.

The spelling of 455040720 in words is "four hundred fifty-five million, forty thousand, seven hundred twenty".