16942005 has 24 divisors (see below), whose sum is σ = 29472768. Its totient is φ = 9002976.

The previous prime is 16941997. The next prime is 16942031. The reversal of 16942005 is 50024961.

It is not a de Polignac number, because 16942005 - 2³ = 16941997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16942005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16744 + ... + 17726.

It is an arithmetic number, because the mean of its divisors is an integer number (1228032).

Almost surely, 2^16942005 is an apocalyptic number.

16942005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16942005 is a deficient number, since it is larger than the sum of its proper divisors (12530763).

16942005 is a wasteful number, since it uses less digits than its factorization.

16942005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377 (or 1374 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 16942005 is about 4116.0666904218. The cubic root of 16942005 is about 256.8354308845.

Adding to 16942005 its reverse (50024961), we get a palindrome (66966966).

The spelling of 16942005 in words is "sixteen million, nine hundred forty-two thousand, five".