13381902 has 16 divisors (see below), whose sum is σ = 29737680. Its totient is φ = 4460616.

The previous prime is 13381891. The next prime is 13381903. The reversal of 13381902 is 20918331.

It is a super-2 number, since 2×13381902² = 358150602275208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13381903) 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, 123853 + ... + 123960.

It is an arithmetic number, because the mean of its divisors is an integer number (1858605).

Almost surely, 2^13381902 is an apocalyptic number.

13381902 is an abundant number, since it is smaller than the sum of its proper divisors (16355778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13381902 is a wasteful number, since it uses less digits than its factorization.

13381902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247824 (or 247818 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 13381902 is about 3658.1282098910. The cubic root of 13381902 is about 237.4137940135.

It can be divided in two parts, 1338 and 1902, that added together give a triangular number (3240 = T₈₀).

The spelling of 13381902 in words is "thirteen million, three hundred eighty-one thousand, nine hundred two".