13197740 has 24 divisors (see below), whose sum is σ = 28069440. Its totient is φ = 5211648.

The previous prime is 13197739. The next prime is 13197749. The reversal of 13197740 is 4779131.

It is a super-2 number, since 2×13197740² = 348360682215200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13197697 and 13197706.

It is not an unprimeable number, because it can be changed into a prime (13197749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2597 + ... + 5756.

It is an arithmetic number, because the mean of its divisors is an integer number (1169560).

Almost surely, 2^13197740 is an apocalyptic number.

13197740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13197740 is an abundant number, since it is smaller than the sum of its proper divisors (14871700).

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

13197740 is a wasteful number, since it uses less digits than its factorization.

13197740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8441 (or 8439 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 13197740 is about 3632.8693893395. The cubic root of 13197740 is about 236.3196616237.

The spelling of 13197740 in words is "thirteen million, one hundred ninety-seven thousand, seven hundred forty".