13830615 has 32 divisors (see below), whose sum is σ = 25064640. Its totient is φ = 7233408.

The previous prime is 13830611. The next prime is 13830617. The reversal of 13830615 is 51603831.

13830615 is a `hidden beast` number, since 13 + 8 + 30 + 615 = 666.

It is not a de Polignac number, because 13830615 - 2² = 13830611 is a prime.

It is a super-2 number, since 2×13830615² = 382571822556450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13830611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6189 + ... + 8121.

It is an arithmetic number, because the mean of its divisors is an integer number (783270).

Almost surely, 2^13830615 is an apocalyptic number.

13830615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13830615 is a deficient number, since it is larger than the sum of its proper divisors (11234025).

13830615 is a wasteful number, since it uses less digits than its factorization.

13830615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1994 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 13830615 is about 3718.9534818279. The cubic root of 13830615 is about 240.0382751456.

The spelling of 13830615 in words is "thirteen million, eight hundred thirty thousand, six hundred fifteen".