898421580 has 144 divisors (see below), whose sum is σ = 3138879744. Its totient is φ = 203748480.

The previous prime is 898421567. The next prime is 898421597. The reversal of 898421580 is 85124898.

It is a happy number.

898421580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×898421580² = 1614322670819392800, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162339 + ... + 167781.

It is an arithmetic number, because the mean of its divisors is an integer number (21797776).

Almost surely, 2^898421580 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 898421580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569439872).

898421580 is an abundant number, since it is smaller than the sum of its proper divisors (2240458164).

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

898421580 is a wasteful number, since it uses less digits than its factorization.

898421580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5596 (or 5591 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 898421580 is about 29973.6814555703. The cubic root of 898421580 is about 964.9246292266.

The spelling of 898421580 in words is "eight hundred ninety-eight million, four hundred twenty-one thousand, five hundred eighty".