16729992 has 48 divisors (see below), whose sum is σ = 45515340. Its totient is φ = 5551488.

The previous prime is 16729991. The next prime is 16729997. The reversal of 16729992 is 29992761.

It can be written as a sum of positive squares in 2 ways, for example, as 16695396 + 34596 = 4086^2 + 186^2 .

It is not an unprimeable number, because it can be changed into a prime (16729991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22458 + ... + 23190.

Almost surely, 2^16729992 is an apocalyptic number.

16729992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16729992 is an abundant number, since it is smaller than the sum of its proper divisors (28785348).

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

16729992 is a wasteful number, since it uses less digits than its factorization.

16729992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062 (or 1055 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 16729992 is about 4090.2312893038. The cubic root of 16729992 is about 255.7595805987.

It can be divided in two parts, 1672 and 9992, that added together give a square (11664 = 108²).

The spelling of 16729992 in words is "sixteen million, seven hundred twenty-nine thousand, nine hundred ninety-two".