13393530 has 24 divisors (see below), whose sum is σ = 34823412. Its totient is φ = 3571584.

The previous prime is 13393517. The next prime is 13393559. The reversal of 13393530 is 3539331.

It can be written as a sum of positive squares in 2 ways, for example, as 13373649 + 19881 = 3657^2 + 141^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13393494 and 13393503.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74319 + ... + 74498.

Almost surely, 2^13393530 is an apocalyptic number.

13393530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13393530 is an abundant number, since it is smaller than the sum of its proper divisors (21429882).

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

13393530 is a wasteful number, since it uses less digits than its factorization.

13393530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148830 (or 148827 counting only the distinct ones).

The product of its (nonzero) digits is 3645, while the sum is 27.

The square root of 13393530 is about 3659.7172021893. The cubic root of 13393530 is about 237.4825398060.

The spelling of 13393530 in words is "thirteen million, three hundred ninety-three thousand, five hundred thirty".