452401686 has 80 divisors (see below), whose sum is σ = 1115136000. Its totient is φ = 135943920.

The previous prime is 452401657. The next prime is 452401687. The reversal of 452401686 is 686104254.

452401686 is a `hidden beast` number, since 452 + 40 + 168 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 452401686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452401687) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 225315 + ... + 227313.

It is an arithmetic number, because the mean of its divisors is an integer number (13939200).

Almost surely, 2^452401686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 452401686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557568000).

452401686 is an abundant number, since it is smaller than the sum of its proper divisors (662734314).

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

452401686 is a wasteful number, since it uses less digits than its factorization.

452401686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151 (or 2142 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 452401686 is about 21269.7363876471. The cubic root of 452401686 is about 767.6702991542.

The spelling of 452401686 in words is "four hundred fifty-two million, four hundred one thousand, six hundred eighty-six".