872152540 has 24 divisors (see below), whose sum is σ = 2093166432. Its totient is φ = 299023680.

The previous prime is 872152537. The next prime is 872152553. The reversal of 872152540 is 45251278.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 872152496 and 872152505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3114691 + ... + 3114970.

It is an arithmetic number, because the mean of its divisors is an integer number (87215268).

Almost surely, 2^872152540 is an apocalyptic number.

It is an amenable number.

872152540 is an abundant number, since it is smaller than the sum of its proper divisors (1221013892).

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

872152540 is a wasteful number, since it uses less digits than its factorization.

872152540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6229677 (or 6229675 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 872152540 is about 29532.2288356297. The cubic root of 872152540 is about 955.4269410356.

The spelling of 872152540 in words is "eight hundred seventy-two million, one hundred fifty-two thousand, five hundred forty".