13598220 has 24 divisors (see below), whose sum is σ = 38075184. Its totient is φ = 3626176.

The previous prime is 13598213. The next prime is 13598237. The reversal of 13598220 is 2289531.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113259 + ... + 113378.

It is an arithmetic number, because the mean of its divisors is an integer number (1586466).

Almost surely, 2^13598220 is an apocalyptic number.

13598220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13598220 is an abundant number, since it is smaller than the sum of its proper divisors (24476964).

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

13598220 is a wasteful number, since it uses less digits than its factorization.

13598220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226649 (or 226647 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 13598220 is about 3687.5764398857. The cubic root of 13598220 is about 238.6862242052.

The spelling of 13598220 in words is "thirteen million, five hundred ninety-eight thousand, two hundred twenty".