452628180 has 72 divisors (see below), whose sum is σ = 1381484832. Its totient is φ = 119952576.

The previous prime is 452628173. The next prime is 452628181. The reversal of 452628180 is 81826254.

452628180 is a `hidden beast` number, since 452 + 6 + 28 + 180 = 666.

It is a super-2 number, since 2×452628180² = 409744538660224800, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452628181) by changing a digit.

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, 21627 + ... + 37053.

Almost surely, 2^452628180 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 452628180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690742416).

452628180 is an abundant number, since it is smaller than the sum of its proper divisors (928856652).

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

452628180 is a wasteful number, since it uses less digits than its factorization.

452628180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15605 (or 15600 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 452628180 is about 21275.0600469188. The cubic root of 452628180 is about 767.7983886477.

The spelling of 452628180 in words is "four hundred fifty-two million, six hundred twenty-eight thousand, one hundred eighty".