899088906240 has 960 divisors, whose sum is σ = 3900060964800. Its totient is φ = 193396211712.

The previous prime is 899088906229. The next prime is 899088906293. The reversal of 899088906240 is 42609880998.

899088906240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (960).

It is a super-2 number, since 2×899088906240² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 98698806 + ... + 98707914.

It is an arithmetic number, because the mean of its divisors is an integer number (4062563505).

Almost surely, 2^899088906240 is an apocalyptic number.

899088906240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899088906240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1950030482400).

899088906240 is an abundant number, since it is smaller than the sum of its proper divisors (3000972058560).

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

899088906240 is a wasteful number, since it uses less digits than its factorization.

899088906240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9172 (or 9143 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 63.

The spelling of 899088906240 in words is "eight hundred ninety-nine billion, eighty-eight million, nine hundred six thousand, two hundred forty".