866228496 has 40 divisors (see below), whose sum is σ = 2557437504. Its totient is φ = 247493760.

The previous prime is 866228477. The next prime is 866228509. The reversal of 866228496 is 694822668.

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, 1288695 + ... + 1289366.

Almost surely, 2^866228496 is an apocalyptic number.

It is an amenable number.

866228496 is an abundant number, since it is smaller than the sum of its proper divisors (1691209008).

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

866228496 is a wasteful number, since it uses less digits than its factorization.

866228496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578079 (or 2578073 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The square root of 866228496 is about 29431.7599881489. The cubic root of 866228496 is about 953.2587978088.

The spelling of 866228496 in words is "eight hundred sixty-six million, two hundred twenty-eight thousand, four hundred ninety-six".