13239604 has 36 divisors (see below), whose sum is σ = 27834240. Its totient is φ = 5488560.

The previous prime is 13239539. The next prime is 13239613. The reversal of 13239604 is 40693231.

It is a super-2 number, since 2×13239604² = 350574228153632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

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, 4987 + ... + 7165.

Almost surely, 2^13239604 is an apocalyptic number.

13239604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13239604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13917120).

13239604 is an abundant number, since it is smaller than the sum of its proper divisors (14594636).

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

13239604 is a wasteful number, since it uses less digits than its factorization.

13239604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228 (or 2219 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 13239604 is about 3638.6266640039. The cubic root of 13239604 is about 236.5692711280.

The spelling of 13239604 in words is "thirteen million, two hundred thirty-nine thousand, six hundred four".