2098440 has 128 divisors (see below), whose sum is σ = 7344000. Its totient is φ = 532224.

The previous prime is 2098427. The next prime is 2098441. The reversal of 2098440 is 448902.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2098441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31287 + ... + 31353.

It is an arithmetic number, because the mean of its divisors is an integer number (57375).

2^2098440 is an apocalyptic number.

2098440 is a gapful number since it is divisible by the number (20) 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 2098440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3672000).

2098440 is an abundant number, since it is smaller than the sum of its proper divisors (5245560).

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

2098440 is a wasteful number, since it uses less digits than its factorization.

2098440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2098440 is about 1448.5993234846. The cubic root of 2098440 is about 128.0261990643.

It can be divided in two parts, 209 and 8440, that added together give a square (8649 = 93²).

The spelling of 2098440 in words is "two million, ninety-eight thousand, four hundred forty".