13940936 has 8 divisors (see below), whose sum is σ = 26139270. Its totient is φ = 6970464.

The previous prime is 13940911. The next prime is 13940951. The reversal of 13940936 is 63904931.

It can be written as a sum of positive squares in only one way, i.e., 9572836 + 4368100 = 3094^2 + 2090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 13940896 and 13940905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 871301 + ... + 871316.

Almost surely, 2^13940936 is an apocalyptic number.

It is an amenable number.

13940936 is a deficient number, since it is larger than the sum of its proper divisors (12198334).

13940936 is a wasteful number, since it uses less digits than its factorization.

13940936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742623 (or 1742619 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 13940936 is about 3733.7562855655. The cubic root of 13940936 is about 240.6748137944.

The spelling of 13940936 in words is "thirteen million, nine hundred forty thousand, nine hundred thirty-six".