13698240 has 112 divisors (see below), whose sum is σ = 45841920. Its totient is φ = 3456000.

The previous prime is 13698233. The next prime is 13698253. The reversal of 13698240 is 4289631.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17865 + ... + 18615.

Almost surely, 2^13698240 is an apocalyptic number.

13698240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13698240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22920960).

13698240 is an abundant number, since it is smaller than the sum of its proper divisors (32143680).

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

13698240 is a wasteful number, since it uses less digits than its factorization.

13698240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 13698240 is about 3701.1133460082. The cubic root of 13698240 is about 239.2700040816.

The spelling of 13698240 in words is "thirteen million, six hundred ninety-eight thousand, two hundred forty".