451023560 has 128 divisors (see below), whose sum is σ = 1168231680. Its totient is φ = 155409408.

The previous prime is 451023541. The next prime is 451023571. The reversal of 451023560 is 65320154.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 513842 + ... + 514718.

It is an arithmetic number, because the mean of its divisors is an integer number (9126810).

Almost surely, 2^451023560 is an apocalyptic number.

451023560 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 451023560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (584115840).

451023560 is an abundant number, since it is smaller than the sum of its proper divisors (717208120).

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

451023560 is a wasteful number, since it uses less digits than its factorization.

451023560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 451023560 is about 21237.3152728870. The cubic root of 451023560 is about 766.8900025671.

The spelling of 451023560 in words is "four hundred fifty-one million, twenty-three thousand, five hundred sixty".