899988480 has 132 divisors (see below), whose sum is σ = 3118596312. Its totient is φ = 239984640.

The previous prime is 899988473. The next prime is 899988503. The reversal of 899988480 is 84889998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36315 + ... + 55845.

Almost surely, 2^899988480 is an apocalyptic number.

899988480 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 899988480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1559298156).

899988480 is an abundant number, since it is smaller than the sum of its proper divisors (2218607832).

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

899988480 is a wasteful number, since it uses less digits than its factorization.

899988480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19562 (or 19541 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 63.

The square root of 899988480 is about 29999.8079993856. The cubic root of 899988480 is about 965.4852651667.

It can be divided in two parts, 8999 and 88480, that added together give a palindrome (97479).

The spelling of 899988480 in words is "eight hundred ninety-nine million, nine hundred eighty-eight thousand, four hundred eighty".