5598990 has 64 divisors (see below), whose sum is σ = 15163200. Its totient is φ = 1469952.

The previous prime is 5598979. The next prime is 5598997. The reversal of 5598990 is 998955.

5598990 is a `hidden beast` number, since 559 + 8 + 9 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5598997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23914 + ... + 24146.

It is an arithmetic number, because the mean of its divisors is an integer number (236925).

Almost surely, 2^5598990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5598990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7581600).

5598990 is an abundant number, since it is smaller than the sum of its proper divisors (9564210).

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

5598990 is a wasteful number, since it uses less digits than its factorization.

5598990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 45.

The square root of 5598990 is about 2366.2185021675. The cubic root of 5598990 is about 177.5701237180.

The spelling of 5598990 in words is "five million, five hundred ninety-eight thousand, nine hundred ninety".