451102272 has 56 divisors (see below), whose sum is σ = 1199887872. Its totient is φ = 149568000.

The previous prime is 451102247. The next prime is 451102273. The reversal of 451102272 is 272201154.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (451102273) 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, 30522 + ... + 42822.

Almost surely, 2^451102272 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 451102272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599943936).

451102272 is an abundant number, since it is smaller than the sum of its proper divisors (748785600).

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

451102272 is a wasteful number, since it uses less digits than its factorization.

451102272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12507 (or 12497 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 451102272 is about 21239.1683453002. The cubic root of 451102272 is about 766.9346121618.

The spelling of 451102272 in words is "four hundred fifty-one million, one hundred two thousand, two hundred seventy-two".