16919429 has 8 divisors (see below), whose sum is σ = 17572632. Its totient is φ = 16277760.

The previous prime is 16919423. The next prime is 16919447. The reversal of 16919429 is 92491961.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1435204 + 15484225 = 1198^2 + 3935^2 .

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 16919429 - 2¹² = 16915333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16919423) 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, 167 + ... + 5819.

It is an arithmetic number, because the mean of its divisors is an integer number (2196579).

Almost surely, 2^16919429 is an apocalyptic number.

It is an amenable number.

16919429 is a deficient number, since it is larger than the sum of its proper divisors (653203).

16919429 is an equidigital number, since it uses as much as digits as its factorization.

16919429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5767.

The product of its digits is 34992, while the sum is 41.

The square root of 16919429 is about 4113.3233522299. The cubic root of 16919429 is about 256.7212985036.

The spelling of 16919429 in words is "sixteen million, nine hundred nineteen thousand, four hundred twenty-nine".