13990320 has 200 divisors, whose sum is σ = 51853824. Its totient is φ = 3483648.

The previous prime is 13990313. The next prime is 13990367. The reversal of 13990320 is 2309931.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 110097 + ... + 110223.

Almost surely, 2^13990320 is an apocalyptic number.

13990320 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 13990320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25926912).

13990320 is an abundant number, since it is smaller than the sum of its proper divisors (37863504).

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

13990320 is a wasteful number, since it uses less digits than its factorization.

13990320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 13990320 is about 3740.3636186874. The cubic root of 13990320 is about 240.9586655693.

The spelling of 13990320 in words is "thirteen million, nine hundred ninety thousand, three hundred twenty".