13918338 has 32 divisors (see below), whose sum is σ = 35349120. Its totient is φ = 3976560.

The previous prime is 13918337. The next prime is 13918339. The reversal of 13918338 is 83381931.

It is an interprime number because it is at equal distance from previous prime (13918337) and next prime (13918339).

It is not an unprimeable number, because it can be changed into a prime (13918337) 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, 18033 + ... + 18788.

It is an arithmetic number, because the mean of its divisors is an integer number (1104660).

Almost surely, 2^13918338 is an apocalyptic number.

13918338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13918338 is an abundant number, since it is smaller than the sum of its proper divisors (21430782).

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

13918338 is a wasteful number, since it uses less digits than its factorization.

13918338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36839 (or 36833 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 13918338 is about 3730.7288832077. The cubic root of 13918338 is about 240.5447003212.

The spelling of 13918338 in words is "thirteen million, nine hundred eighteen thousand, three hundred thirty-eight".