13694140 has 24 divisors (see below), whose sum is σ = 29302560. Its totient is φ = 5373888.

The previous prime is 13694113. The next prime is 13694179. The reversal of 13694140 is 4149631.

It is a junction number, because it is equal to n+sod(n) for n = 13694099 and 13694108.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5400 + ... + 7519.

It is an arithmetic number, because the mean of its divisors is an integer number (1220940).

Almost surely, 2^13694140 is an apocalyptic number.

13694140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13694140 is an abundant number, since it is smaller than the sum of its proper divisors (15608420).

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

13694140 is a wasteful number, since it uses less digits than its factorization.

13694140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12981 (or 12979 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13694140 is about 3700.5594171692. The cubic root of 13694140 is about 239.2461298489.

The spelling of 13694140 in words is "thirteen million, six hundred ninety-four thousand, one hundred forty".