815345652 has 24 divisors (see below), whose sum is σ = 2075425632. Its totient is φ = 247074400.

The previous prime is 815345647. The next prime is 815345683. The reversal of 815345652 is 256543518.

It is a self number, because there is not a number n which added to its sum of digits gives 815345652.

It is a congruent 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, 3088299 + ... + 3088562.

It is an arithmetic number, because the mean of its divisors is an integer number (86476068).

Almost surely, 2^815345652 is an apocalyptic number.

It is an amenable number.

815345652 is an abundant number, since it is smaller than the sum of its proper divisors (1260079980).

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

815345652 is a wasteful number, since it uses less digits than its factorization.

815345652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6176879 (or 6176877 counting only the distinct ones).

The product of its digits is 144000, while the sum is 39.

The square root of 815345652 is about 28554.2580362369. The cubic root of 815345652 is about 934.2158970972.

The spelling of 815345652 in words is "eight hundred fifteen million, three hundred forty-five thousand, six hundred fifty-two".