869540562 has 32 divisors (see below), whose sum is σ = 2107978560. Its totient is φ = 263496960.

The previous prime is 869540533. The next prime is 869540563. The reversal of 869540562 is 265045968.

869540562 is a `hidden beast` number, since 86 + 9 + 5 + 4 + 0 + 562 = 666.

It is a super-2 number, since 2×869540562² = 1512201577926551688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (869540563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 731343 + ... + 732530.

It is an arithmetic number, because the mean of its divisors is an integer number (65874330).

Almost surely, 2^869540562 is an apocalyptic number.

869540562 is an abundant number, since it is smaller than the sum of its proper divisors (1238437998).

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

869540562 is a wasteful number, since it uses less digits than its factorization.

869540562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463895 (or 1463889 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 869540562 is about 29487.9731755168. The cubic root of 869540562 is about 954.4721961292.

The spelling of 869540562 in words is "eight hundred sixty-nine million, five hundred forty thousand, five hundred sixty-two".