899189424 has 160 divisors (see below), whose sum is σ = 2986951680. Its totient is φ = 256841280.

The previous prime is 899189407. The next prime is 899189437. The reversal of 899189424 is 424981998.

It is a super-3 number, since 3×899189424³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243109 + ... + 246779.

It is an arithmetic number, because the mean of its divisors is an integer number (18668448).

Almost surely, 2^899189424 is an apocalyptic number.

899189424 is a gapful number since it is divisible by the number (84) 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 899189424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1493475840).

899189424 is an abundant number, since it is smaller than the sum of its proper divisors (2087762256).

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

899189424 is an equidigital number, since it uses as much as digits as its factorization.

899189424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707 (or 3683 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 899189424 is about 29986.4873568079. The cubic root of 899189424 is about 965.1994447579.

The spelling of 899189424 in words is "eight hundred ninety-nine million, one hundred eighty-nine thousand, four hundred twenty-four".