898240 has 56 divisors (see below), whose sum is σ = 2450592. Its totient is φ = 307200.

The previous prime is 898231. The next prime is 898241. The reversal of 898240 is 42898.

It is a tau number, because it is divible by the number of its divisors (56).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2040 + ... + 2440.

2⁸⁹⁸²⁴⁰ is an apocalyptic number.

898240 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 898240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1225296).

898240 is an abundant number, since it is smaller than the sum of its proper divisors (1552352).

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

898240 is a wasteful number, since it uses less digits than its factorization.

898240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 898240 is about 947.7552426655. The cubic root of 898240 is about 96.4859617869.

The spelling of 898240 in words is "eight hundred ninety-eight thousand, two hundred forty".