452158812 has 72 divisors (see below), whose sum is σ = 1308967296. Its totient is φ = 128918304.

The previous prime is 452158801. The next prime is 452158829. The reversal of 452158812 is 218851254.

452158812 is a `hidden beast` number, since 4 + 521 + 58 + 81 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140283 + ... + 143469.

Almost surely, 2^452158812 is an apocalyptic number.

452158812 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 452158812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654483648).

452158812 is an abundant number, since it is smaller than the sum of its proper divisors (856808484).

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

452158812 is a wasteful number, since it uses less digits than its factorization.

452158812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767 (or 3762 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 452158812 is about 21264.0262415188. The cubic root of 452158812 is about 767.5328987443.

The spelling of 452158812 in words is "four hundred fifty-two million, one hundred fifty-eight thousand, eight hundred twelve".