899245800 has 144 divisors (see below), whose sum is σ = 3131987040. Its totient is φ = 239785920.

The previous prime is 899245769. The next prime is 899245807. The reversal of 899245800 is 8542998.

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

It is not an unprimeable number, because it can be changed into a prime (899245807) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 39349 + ... + 57851.

It is an arithmetic number, because the mean of its divisors is an integer number (21749910).

Almost surely, 2^899245800 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 899245800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1565993520).

899245800 is an abundant number, since it is smaller than the sum of its proper divisors (2232741240).

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

899245800 is a wasteful number, since it uses less digits than its factorization.

899245800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18534 (or 18513 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 899245800 is about 29987.4273654810. The cubic root of 899245800 is about 965.2196158681.

The spelling of 899245800 in words is "eight hundred ninety-nine million, two hundred forty-five thousand, eight hundred".