13940637 has 8 divisors (see below), whose sum is σ = 18849600. Its totient is φ = 9162720.

The previous prime is 13940617. The next prime is 13940639. The reversal of 13940637 is 73604931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13940637 - 2¹⁶ = 13875101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13940598 and 13940607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13940639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32512 + ... + 32937.

It is an arithmetic number, because the mean of its divisors is an integer number (2356200).

Almost surely, 2^13940637 is an apocalyptic number.

It is an amenable number.

13940637 is a deficient number, since it is larger than the sum of its proper divisors (4908963).

13940637 is an equidigital number, since it uses as much as digits as its factorization.

13940637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65523.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 13940637 is about 3733.7162452441. The cubic root of 13940637 is about 240.6730931475.

The spelling of 13940637 in words is "thirteen million, nine hundred forty thousand, six hundred thirty-seven".