16929690 has 16 divisors (see below), whose sum is σ = 40631328. Its totient is φ = 4514576.

The previous prime is 16929643. The next prime is 16929691. The reversal of 16929690 is 9692961.

It is a happy number.

It is a super-2 number, since 2×16929690² = 573228806992200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (16929691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282132 + ... + 282191.

It is an arithmetic number, because the mean of its divisors is an integer number (2539458).

Almost surely, 2^16929690 is an apocalyptic number.

16929690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16929690 is an abundant number, since it is smaller than the sum of its proper divisors (23701638).

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

16929690 is a wasteful number, since it uses less digits than its factorization.

16929690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564333.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 16929690 is about 4114.5704514566. The cubic root of 16929690 is about 256.7731853000.

The spelling of 16929690 in words is "sixteen million, nine hundred twenty-nine thousand, six hundred ninety".