451440912 has 240 divisors, whose sum is σ = 1388750400. Its totient is φ = 125798400.

The previous prime is 451440887. The next prime is 451440929. The reversal of 451440912 is 219044154.

It is a self number, because there is not a number n which added to its sum of digits gives 451440912.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4469662 + ... + 4469762.

It is an arithmetic number, because the mean of its divisors is an integer number (5786460).

Almost surely, 2^451440912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451440912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694375200).

451440912 is an abundant number, since it is smaller than the sum of its proper divisors (937309488).

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

451440912 is a wasteful number, since it uses less digits than its factorization.

451440912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 451440912 is about 21247.1389132749. The cubic root of 451440912 is about 767.1264753611.

The spelling of 451440912 in words is "four hundred fifty-one million, four hundred forty thousand, nine hundred twelve".