13198020 has 48 divisors (see below), whose sum is σ = 40315968. Its totient is φ = 3199360.

The previous prime is 13198019. The next prime is 13198037. The reversal of 13198020 is 2089131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9339 + ... + 10658.

It is an arithmetic number, because the mean of its divisors is an integer number (839916).

Almost surely, 2^13198020 is an apocalyptic number.

13198020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13198020 is an abundant number, since it is smaller than the sum of its proper divisors (27117948).

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

13198020 is a wasteful number, since it uses less digits than its factorization.

13198020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20020 (or 20018 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 13198020 is about 3632.9079261660. The cubic root of 13198020 is about 236.3213328451.

Subtracting from 13198020 its reverse (2089131), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1319 and 8020, that added together give a palindrome (9339).

The spelling of 13198020 in words is "thirteen million, one hundred ninety-eight thousand, twenty".