16939530 has 48 divisors (see below), whose sum is σ = 45680544. Its totient is φ = 4516560.

The previous prime is 16939501. The next prime is 16939537. The reversal of 16939530 is 3593961.

It is not an unprimeable number, because it can be changed into a prime (16939537) 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, 1056 + ... + 5915.

It is an arithmetic number, because the mean of its divisors is an integer number (951678).

Almost surely, 2^16939530 is an apocalyptic number.

16939530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16939530 is an abundant number, since it is smaller than the sum of its proper divisors (28741014).

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

16939530 is an equidigital number, since it uses as much as digits as its factorization.

16939530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6993 (or 6981 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 16939530 is about 4115.7660283354. The cubic root of 16939530 is about 256.8229235367.

The spelling of 16939530 in words is "sixteen million, nine hundred thirty-nine thousand, five hundred thirty".