451447140 has 24 divisors (see below), whose sum is σ = 1264052160. Its totient is φ = 120385888.

The previous prime is 451447109. The next prime is 451447169. The reversal of 451447140 is 41744154.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 451447098 and 451447107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3762000 + ... + 3762119.

It is an arithmetic number, because the mean of its divisors is an integer number (52668840).

Almost surely, 2^451447140 is an apocalyptic number.

It is an amenable number.

451447140 is an abundant number, since it is smaller than the sum of its proper divisors (812605020).

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

451447140 is a wasteful number, since it uses less digits than its factorization.

451447140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524131 (or 7524129 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 451447140 is about 21247.2854736787. The cubic root of 451447140 is about 767.1300030592.

The spelling of 451447140 in words is "four hundred fifty-one million, four hundred forty-seven thousand, one hundred forty".