13912730 has 16 divisors (see below), whose sum is σ = 26969544. Its totient is φ = 5136960.

The previous prime is 13912729. The next prime is 13912739. The reversal of 13912730 is 3721931.

It can be written as a sum of positive squares in 4 ways, for example, as 4481689 + 9431041 = 2117^2 + 3071^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 13912730.

It is not an unprimeable number, because it can be changed into a prime (13912739) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 53381 + ... + 53640.

Almost surely, 2^13912730 is an apocalyptic number.

13912730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13912730 is a deficient number, since it is larger than the sum of its proper divisors (13056814).

13912730 is a wasteful number, since it uses less digits than its factorization.

13912730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107041.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 13912730 is about 3729.9772117266. The cubic root of 13912730 is about 240.5123890904.

The spelling of 13912730 in words is "thirteen million, nine hundred twelve thousand, seven hundred thirty".