452188404 has 36 divisors (see below), whose sum is σ = 1145273220. Its totient is φ = 150433920.

The previous prime is 452188397. The next prime is 452188409. The reversal of 452188404 is 404881254.

It can be written as a sum of positive squares in 2 ways, for example, as 205635600 + 246552804 = 14340^2 + 15702^2 .

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

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 (452188409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6702 + ... + 30810.

It is an arithmetic number, because the mean of its divisors is an integer number (31813145).

Almost surely, 2^452188404 is an apocalyptic number.

It is an amenable number.

452188404 is an abundant number, since it is smaller than the sum of its proper divisors (693084816).

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

452188404 is a wasteful number, since it uses less digits than its factorization.

452188404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24640 (or 24635 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The square root of 452188404 is about 21264.7220532035. The cubic root of 452188404 is about 767.5496423732.

The spelling of 452188404 in words is "four hundred fifty-two million, one hundred eighty-eight thousand, four hundred four".