13990650 has 48 divisors (see below), whose sum is σ = 36530400. Its totient is φ = 3533760.

The previous prime is 13990637. The next prime is 13990657. The reversal of 13990650 is 5609931.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13990657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 396 + ... + 5304.

It is an arithmetic number, because the mean of its divisors is an integer number (761050).

Almost surely, 2^13990650 is an apocalyptic number.

13990650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13990650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18265200).

13990650 is an abundant number, since it is smaller than the sum of its proper divisors (22539750).

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

13990650 is a wasteful number, since it uses less digits than its factorization.

13990650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4943 (or 4938 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 13990650 is about 3740.4077317854. The cubic root of 13990650 is about 240.9605601111.

The spelling of 13990650 in words is "thirteen million, nine hundred ninety thousand, six hundred fifty".