13990194 has 36 divisors (see below), whose sum is σ = 32006286. Its totient is φ = 4415904.

The previous prime is 13990183. The next prime is 13990199. The reversal of 13990194 is 49109931.

It can be written as a sum of positive squares in only one way, i.e., 13727025 + 263169 = 3705^2 + 513^2 .

It is a super-3 number, since 3×13990194³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13990199) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 5422 + ... + 7574.

Almost surely, 2^13990194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13990194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16003143).

13990194 is an abundant number, since it is smaller than the sum of its proper divisors (18016092).

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

13990194 is a wasteful number, since it uses less digits than its factorization.

13990194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199 (or 2177 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 13990194 is about 3740.3467753672. The cubic root of 13990194 is about 240.9579421910.

The spelling of 13990194 in words is "thirteen million, nine hundred ninety thousand, one hundred ninety-four".