898015440 has 320 divisors, whose sum is σ = 3368927232. Its totient is φ = 193536000.

The previous prime is 898015399. The next prime is 898015513. The reversal of 898015440 is 44510898.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2239240 + ... + 2239640.

Almost surely, 2^898015440 is an apocalyptic number.

898015440 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 898015440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1684463616).

898015440 is an abundant number, since it is smaller than the sum of its proper divisors (2470911792).

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

898015440 is a wasteful number, since it uses less digits than its factorization.

898015440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 898015440 is about 29966.9057461727. The cubic root of 898015440 is about 964.7792061996.

The spelling of 898015440 in words is "eight hundred ninety-eight million, fifteen thousand, four hundred forty".