898257920 has 176 divisors, whose sum is σ = 2504348928. Its totient is φ = 302776320.

The previous prime is 898257907. The next prime is 898257947. The reversal of 898257920 is 29752898.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2544464 + ... + 2544816.

Almost surely, 2^898257920 is an apocalyptic number.

898257920 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 898257920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1252174464).

898257920 is an abundant number, since it is smaller than the sum of its proper divisors (1606091008).

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

898257920 is a wasteful number, since it uses less digits than its factorization.

898257920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 898257920 is about 29970.9512695210. The cubic root of 898257920 is about 964.8660341830.

The spelling of 898257920 in words is "eight hundred ninety-eight million, two hundred fifty-seven thousand, nine hundred twenty".