13913810 has 8 divisors (see below), whose sum is σ = 25044876. Its totient is φ = 5565520.

The previous prime is 13913807. The next prime is 13913819. The reversal of 13913810 is 1831931.

13913810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13712209 + 201601 = 3703^2 + 449^2 .

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

It is a super-2 number, since 2×13913810² = 387188217432200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13913810.

It is not an unprimeable number, because it can be changed into a prime (13913819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695681 + ... + 695700.

Almost surely, 2^13913810 is an apocalyptic number.

13913810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13913810 is a deficient number, since it is larger than the sum of its proper divisors (11131066).

13913810 is a wasteful number, since it uses less digits than its factorization.

13913810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391388.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 13913810 is about 3730.1219819196. The cubic root of 13913810 is about 240.5186123276.

The spelling of 13913810 in words is "thirteen million, nine hundred thirteen thousand, eight hundred ten".