8400309252 has 24 divisors (see below), whose sum is σ = 19632713856. Its totient is φ = 2795532768.

The previous prime is 8400309223. The next prime is 8400309271. The reversal of 8400309252 is 2529030048.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563628 + ... + 578339.

It is an arithmetic number, because the mean of its divisors is an integer number (818029744).

Almost surely, 2^8400309252 is an apocalyptic number.

It is an amenable number.

8400309252 is an abundant number, since it is smaller than the sum of its proper divisors (11232404604).

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

8400309252 is a wasteful number, since it uses less digits than its factorization.

8400309252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142587 (or 1142585 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 8400309252 is about 91653.2009915638. The cubic root of 8400309252 is about 2032.8176595622.

The spelling of 8400309252 in words is "eight billion, four hundred million, three hundred nine thousand, two hundred fifty-two".