898140 has 24 divisors (see below), whose sum is σ = 2514960. Its totient is φ = 239488.

The previous prime is 898133. The next prime is 898147. The reversal of 898140 is 41898.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (898133) and next prime (898147).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 898098 and 898107.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 898140.

It is not an unprimeable number, because it can be changed into a prime (898147) by changing a digit.

898140 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7425 + ... + 7544.

It is an arithmetic number, because the mean of its divisors is an integer number (104790).

2⁸⁹⁸¹⁴⁰ is an apocalyptic number.

It is an amenable number.

898140 is an abundant number, since it is smaller than the sum of its proper divisors (1616820).

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

898140 is a wasteful number, since it uses less digits than its factorization.

898140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14981 (or 14979 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 898140 is about 947.7024849603. The cubic root of 898140 is about 96.4823810979.

The spelling of 898140 in words is "eight hundred ninety-eight thousand, one hundred forty".