899775240 has 384 divisors, whose sum is σ = 3447360000. Its totient is φ = 186181632.

The previous prime is 899775211. The next prime is 899775241. The reversal of 899775240 is 42577998.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (899775241) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6038686 + ... + 6038834.

It is an arithmetic number, because the mean of its divisors is an integer number (8977500).

Almost surely, 2^899775240 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 899775240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1723680000).

899775240 is an abundant number, since it is smaller than the sum of its proper divisors (2547584760).

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

899775240 is a wasteful number, since it uses less digits than its factorization.

899775240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The square root of 899775240 is about 29996.2537660955. The cubic root of 899775240 is about 965.4090062868.

The spelling of 899775240 in words is "eight hundred ninety-nine million, seven hundred seventy-five thousand, two hundred forty".