406852660 has 12 divisors (see below), whose sum is σ = 854390628. Its totient is φ = 162741056.

The previous prime is 406852657. The next prime is 406852661. The reversal of 406852660 is 66258604.

It can be written as a sum of positive squares in 2 ways, for example, as 312723856 + 94128804 = 17684^2 + 9702^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406852661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10171297 + ... + 10171336.

It is an arithmetic number, because the mean of its divisors is an integer number (71199219).

Almost surely, 2^406852660 is an apocalyptic number.

It is an amenable number.

406852660 is an abundant number, since it is smaller than the sum of its proper divisors (447537968).

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

406852660 is a wasteful number, since it uses less digits than its factorization.

406852660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20342642 (or 20342640 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 406852660 is about 20170.5889849553. The cubic root of 406852660 is about 740.9900675132.

The spelling of 406852660 in words is "four hundred six million, eight hundred fifty-two thousand, six hundred sixty".