13198140 has 60 divisors (see below), whose sum is σ = 41408136. Its totient is φ = 3519072.

The previous prime is 13198139. The next prime is 13198147. The reversal of 13198140 is 4189131.

13198140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-3 number, since 3×13198140³ (a number of 22 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13198147) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2454 + ... + 5693.

Almost surely, 2^13198140 is an apocalyptic number.

13198140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13198140 is an abundant number, since it is smaller than the sum of its proper divisors (28209996).

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

13198140 is a wasteful number, since it uses less digits than its factorization.

13198140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8168 (or 8157 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 13198140 is about 3632.9244418237. The cubic root of 13198140 is about 236.3220490756.

Subtracting from 13198140 its reverse (4189131), we obtain a palindrome (9009009).

The spelling of 13198140 in words is "thirteen million, one hundred ninety-eight thousand, one hundred forty".