13813802 has 32 divisors (see below), whose sum is σ = 22695120. Its totient is φ = 6289920.

The previous prime is 13813801. The next prime is 13813829. The reversal of 13813802 is 20831831.

It can be written as a sum of positive squares in 8 ways, for example, as 4879681 + 8934121 = 2209^2 + 2989^2 .

It is a super-2 number, since 2×13813802² = 381642251390408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13813801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87908 + ... + 88064.

Almost surely, 2^13813802 is an apocalyptic number.

13813802 is a deficient number, since it is larger than the sum of its proper divisors (8881318).

13813802 is a wasteful number, since it uses less digits than its factorization.

13813802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 13813802 is about 3716.6923466975. The cubic root of 13813802 is about 239.9409692782.

The spelling of 13813802 in words is "thirteen million, eight hundred thirteen thousand, eight hundred two".