899640360 has 96 divisors (see below), whose sum is σ = 2928393000. Its totient is φ = 239529984.

The previous prime is 899640341. The next prime is 899640389. The reversal of 899640360 is 63046998.

It can be written as a sum of positive squares in 4 ways, for example, as 899640036 + 324 = 29994^2 + 18^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289696 + ... + 292784.

Almost surely, 2^899640360 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 899640360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1464196500).

899640360 is an abundant number, since it is smaller than the sum of its proper divisors (2028752640).

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

899640360 is a wasteful number, since it uses less digits than its factorization.

899640360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915 (or 3908 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 899640360 is about 29994.0054010797. The cubic root of 899640360 is about 965.3607642859.

The spelling of 899640360 in words is "eight hundred ninety-nine million, six hundred forty thousand, three hundred sixty".