16939650 has 192 divisors, whose sum is σ = 55496448. Its totient is φ = 3317760.

The previous prime is 16939631. The next prime is 16939669. The reversal of 16939650 is 5693961.

16939650 is nontrivially palindromic in base 9.

It is an interprime number because it is at equal distance from previous prime (16939631) and next prime (16939669).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 16939599 and 16939608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 232014 + ... + 232086.

It is an arithmetic number, because the mean of its divisors is an integer number (289044).

Almost surely, 2^16939650 is an apocalyptic number.

16939650 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 16939650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27748224).

16939650 is an abundant number, since it is smaller than the sum of its proper divisors (38556798).

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

16939650 is a wasteful number, since it uses less digits than its factorization.

16939650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 16939650 is about 4115.7806063978. The cubic root of 16939650 is about 256.8235299816.

The spelling of 16939650 in words is "sixteen million, nine hundred thirty-nine thousand, six hundred fifty".