852365440 has 32 divisors (see below), whose sum is σ = 2037687660. Its totient is φ = 340945920.

The previous prime is 852365413. The next prime is 852365461. The reversal of 852365440 is 44563258.

It can be written as a sum of positive squares in 2 ways, for example, as 705858624 + 146506816 = 26568^2 + 12104^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 852365440.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665271 + ... + 666550.

Almost surely, 2^852365440 is an apocalyptic number.

852365440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

852365440 is an abundant number, since it is smaller than the sum of its proper divisors (1185322220).

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

852365440 is a wasteful number, since it uses less digits than its factorization.

852365440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331840 (or 1331828 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 852365440 is about 29195.2982516021. The cubic root of 852365440 is about 948.1461316387.

The spelling of 852365440 in words is "eight hundred fifty-two million, three hundred sixty-five thousand, four hundred forty".