16939950 has 48 divisors (see below), whose sum is σ = 43378176. Its totient is φ = 4370400.

The previous prime is 16939933. The next prime is 16939997. The reversal of 16939950 is 5993961.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 2829 + ... + 6471.

It is an arithmetic number, because the mean of its divisors is an integer number (903712).

Almost surely, 2^16939950 is an apocalyptic number.

16939950 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 16939950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21689088).

16939950 is an abundant number, since it is smaller than the sum of its proper divisors (26438226).

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

16939950 is a wasteful number, since it uses less digits than its factorization.

16939950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689 (or 3684 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 42.

The square root of 16939950 is about 4115.8170513277. The cubic root of 16939950 is about 256.8250460815.

The spelling of 16939950 in words is "sixteen million, nine hundred thirty-nine thousand, nine hundred fifty".