13665396 has 24 divisors (see below), whose sum is σ = 32133024. Its totient is φ = 4519840.

The previous prime is 13665383. The next prime is 13665413. The reversal of 13665396 is 69356631.

13665396 = T₁₈₃ + T₁₈₄ + ... + T₄₄₄.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2775 + ... + 5918.

It is an arithmetic number, because the mean of its divisors is an integer number (1338876).

Almost surely, 2^13665396 is an apocalyptic number.

It is an amenable number.

13665396 is an abundant number, since it is smaller than the sum of its proper divisors (18467628).

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

13665396 is a wasteful number, since it uses less digits than its factorization.

13665396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8831 (or 8829 counting only the distinct ones).

The product of its digits is 87480, while the sum is 39.

The square root of 13665396 is about 3696.6736399093. The cubic root of 13665396 is about 239.0786200502.

The spelling of 13665396 in words is "thirteen million, six hundred sixty-five thousand, three hundred ninety-six".