13901818 has 16 divisors (see below), whose sum is σ = 25233984. Its totient is φ = 5607360.

The previous prime is 13901803. The next prime is 13901819. The reversal of 13901818 is 81810931.

13901818 is a modest number, since divided by 1818 gives 1390 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 13901818.

It is not an unprimeable number, because it can be changed into a prime (13901819) 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, 28968 + ... + 29443.

It is an arithmetic number, because the mean of its divisors is an integer number (1577124).

Almost surely, 2^13901818 is an apocalyptic number.

13901818 is a deficient number, since it is larger than the sum of its proper divisors (11332166).

13901818 is a wasteful number, since it uses less digits than its factorization.

13901818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58437.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 13901818 is about 3728.5141812792. The cubic root of 13901818 is about 240.4494932717.

The spelling of 13901818 in words is "thirteen million, nine hundred one thousand, eight hundred eighteen".