898459396920 has 1280 divisors, whose sum is σ = 3549059712000. Its totient is φ = 202198892544.

The previous prime is 898459396847. The next prime is 898459396931. The reversal of 898459396920 is 29693954898.

898459396920 is a `hidden beast` number, since 8 + 9 + 8 + 4 + 593 + 9 + 6 + 9 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 3923403366 + ... + 3923403594.

It is an arithmetic number, because the mean of its divisors is an integer number (2772702900).

Almost surely, 2^898459396920 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 898459396920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1774529856000).

898459396920 is an abundant number, since it is smaller than the sum of its proper divisors (2650600315080).

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

898459396920 is a wasteful number, since it uses less digits than its factorization.

898459396920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 302330880, while the sum is 72.

The spelling of 898459396920 in words is "eight hundred ninety-eight billion, four hundred fifty-nine million, three hundred ninety-six thousand, nine hundred twenty".