13826240 has 28 divisors (see below), whose sum is σ = 32924496. Its totient is φ = 5530368.

The previous prime is 13826233. The next prime is 13826249. The reversal of 13826240 is 4262831.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (13826249) 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 3 ways as a sum of consecutive naturals, for example, 21284 + ... + 21923.

Almost surely, 2^13826240 is an apocalyptic number.

13826240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13826240 is an abundant number, since it is smaller than the sum of its proper divisors (19098256).

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

13826240 is an equidigital number, since it uses as much as digits as its factorization.

13826240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43224 (or 43214 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 13826240 is about 3718.3652321955. The cubic root of 13826240 is about 240.0129622629.

The spelling of 13826240 in words is "thirteen million, eight hundred twenty-six thousand, two hundred forty".