899866368 has 144 divisors (see below), whose sum is σ = 2689495200. Its totient is φ = 296755200.

The previous prime is 899866351. The next prime is 899866403. The reversal of 899866368 is 863668998.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×899866368² = 1619518960515022848, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697468 + ... + 698756.

It is an arithmetic number, because the mean of its divisors is an integer number (18677050).

Almost surely, 2^899866368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899866368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344747600).

899866368 is an abundant number, since it is smaller than the sum of its proper divisors (1789628832).

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

899866368 is a wasteful number, since it uses less digits than its factorization.

899866368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415 (or 1395 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 63.

The square root of 899866368 is about 29997.7727173202. The cubic root of 899866368 is about 965.4415969524.

The spelling of 899866368 in words is "eight hundred ninety-nine million, eight hundred sixty-six thousand, three hundred sixty-eight".