451319652 has 36 divisors (see below), whose sum is σ = 1303813056. Its totient is φ = 128948400.

The previous prime is 451319647. The next prime is 451319683. The reversal of 451319652 is 256913154.

451319652 is a `hidden beast` number, since 4 + 513 + 1 + 96 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×451319652² = 407378856562802208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 895224 + ... + 895727.

Almost surely, 2^451319652 is an apocalyptic number.

451319652 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

451319652 is an abundant number, since it is smaller than the sum of its proper divisors (852493404).

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

451319652 is a wasteful number, since it uses less digits than its factorization.

451319652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790968 (or 1790963 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 451319652 is about 21244.2851609556. The cubic root of 451319652 is about 767.0577841371.

The spelling of 451319652 in words is "four hundred fifty-one million, three hundred nineteen thousand, six hundred fifty-two".