451400560 has 40 divisors (see below), whose sum is σ = 1130240160. Its totient is φ = 166670592.

The previous prime is 451400557. The next prime is 451400569. The reversal of 451400560 is 65004154.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451400569) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 215980 + ... + 218059.

It is an arithmetic number, because the mean of its divisors is an integer number (28256004).

Almost surely, 2^451400560 is an apocalyptic number.

451400560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451400560 is an abundant number, since it is smaller than the sum of its proper divisors (678839600).

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

451400560 is a wasteful number, since it uses less digits than its factorization.

451400560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434065 (or 434059 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 451400560 is about 21246.1893053790. The cubic root of 451400560 is about 767.1036181727.

The spelling of 451400560 in words is "four hundred fifty-one million, four hundred thousand, five hundred sixty".