451322984 has 32 divisors (see below), whose sum is σ = 985374720. Its totient is φ = 189773376.

The previous prime is 451322983. The next prime is 451323001. The reversal of 451322984 is 489223154.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (451322981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73064 + ... + 78999.

It is an arithmetic number, because the mean of its divisors is an integer number (30792960).

Almost surely, 2^451322984 is an apocalyptic number.

It is an amenable number.

451322984 is an abundant number, since it is smaller than the sum of its proper divisors (534051736).

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

451322984 is a wasteful number, since it uses less digits than its factorization.

451322984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152129 (or 152125 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 451322984 is about 21244.3635819010. The cubic root of 451322984 is about 767.0596718090.

The spelling of 451322984 in words is "four hundred fifty-one million, three hundred twenty-two thousand, nine hundred eighty-four".