406536252 has 24 divisors (see below), whose sum is σ = 949858896. Its totient is φ = 135330048.

The previous prime is 406536223. The next prime is 406536257. The reversal of 406536252 is 252635604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406536257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13293 + ... + 31460.

It is an arithmetic number, because the mean of its divisors is an integer number (39577454).

Almost surely, 2^406536252 is an apocalyptic number.

It is an amenable number.

406536252 is an abundant number, since it is smaller than the sum of its proper divisors (543322644).

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

406536252 is a wasteful number, since it uses less digits than its factorization.

406536252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45517 (or 45515 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 406536252 is about 20162.7441584721. The cubic root of 406536252 is about 740.7979291685.

The spelling of 406536252 in words is "four hundred six million, five hundred thirty-six thousand, two hundred fifty-two".