16944429 has 8 divisors (see below), whose sum is σ = 22744800. Its totient is φ = 11220176.

The previous prime is 16944407. The next prime is 16944437. The reversal of 16944429 is 92444961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16944429 - 2²⁴ = 167213 is a prime.

It is a super-2 number, since 2×16944429² = 574227348272082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16944479) 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, 18507 + ... + 19400.

It is an arithmetic number, because the mean of its divisors is an integer number (2843100).

Almost surely, 2^16944429 is an apocalyptic number.

It is an amenable number.

16944429 is a deficient number, since it is larger than the sum of its proper divisors (5800371).

16944429 is a wasteful number, since it uses less digits than its factorization.

16944429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38059.

The product of its digits is 62208, while the sum is 39.

The square root of 16944429 is about 4116.3611357606. The cubic root of 16944429 is about 256.8476793245.

The spelling of 16944429 in words is "sixteen million, nine hundred forty-four thousand, four hundred twenty-nine".