13918330 has 16 divisors (see below), whose sum is σ = 25526664. Its totient is φ = 5462080.

The previous prime is 13918301. The next prime is 13918337. The reversal of 13918330 is 3381931.

It can be written as a sum of positive squares in 4 ways, for example, as 8105409 + 5812921 = 2847^2 + 2411^2 .

It is not an unprimeable number, because it can be changed into a prime (13918337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12601 + ... + 13660.

Almost surely, 2^13918330 is an apocalyptic number.

13918330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13918330 is a deficient number, since it is larger than the sum of its proper divisors (11608334).

13918330 is a wasteful number, since it uses less digits than its factorization.

13918330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26321.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 13918330 is about 3730.7278110310. The cubic root of 13918330 is about 240.5446542344.

The spelling of 13918330 in words is "thirteen million, nine hundred eighteen thousand, three hundred thirty".