451921960 has 32 divisors (see below), whose sum is σ = 1162085760. Its totient is φ = 154944576.

The previous prime is 451921919. The next prime is 451922017. The reversal of 451921960 is 69129154.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806724 + ... + 807283.

It is an arithmetic number, because the mean of its divisors is an integer number (36315180).

Almost surely, 2^451921960 is an apocalyptic number.

451921960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451921960 is an abundant number, since it is smaller than the sum of its proper divisors (710163800).

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

451921960 is a wasteful number, since it uses less digits than its factorization.

451921960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614025 (or 1614021 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 451921960 is about 21258.4561998279. The cubic root of 451921960 is about 767.3988577475.

The spelling of 451921960 in words is "four hundred fifty-one million, nine hundred twenty-one thousand, nine hundred sixty".