13140324 has 36 divisors (see below), whose sum is σ = 34965840. Its totient is φ = 4149360.

The previous prime is 13140317. The next prime is 13140329. The reversal of 13140324 is 42304131.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13140324² = 345336229649952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13140297 and 13140306.

It is not an unprimeable number, because it can be changed into a prime (13140329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8922 + ... + 10289.

Almost surely, 2^13140324 is an apocalyptic number.

It is an amenable number.

13140324 is an abundant number, since it is smaller than the sum of its proper divisors (21825516).

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

13140324 is a wasteful number, since it uses less digits than its factorization.

13140324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19240 (or 19235 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13140324 is about 3624.9584825209. The cubic root of 13140324 is about 235.9764651433.

Adding to 13140324 its reverse (42304131), we get a palindrome (55444455).

The spelling of 13140324 in words is "thirteen million, one hundred forty thousand, three hundred twenty-four".