16429939 has 12 divisors (see below), whose sum is σ = 17621800. Its totient is φ = 15314688.

The previous prime is 16429909. The next prime is 16429943. The reversal of 16429939 is 93992461.

It is not a de Polignac number, because 16429939 - 2⁷ = 16429811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16429895 and 16429904.

It is not an unprimeable number, because it can be changed into a prime (16429909) 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, 39967 + ... + 40375.

Almost surely, 2^16429939 is an apocalyptic number.

16429939 is a deficient number, since it is larger than the sum of its proper divisors (1191861).

16429939 is a wasteful number, since it uses less digits than its factorization.

16429939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 565 counting only the distinct ones).

The product of its digits is 104976, while the sum is 43.

The square root of 16429939 is about 4053.3861153362. The cubic root of 16429939 is about 254.2213283611.

It can be divided in two parts, 164 and 29939, that added together give a palindrome (30103).

The spelling of 16429939 in words is "sixteen million, four hundred twenty-nine thousand, nine hundred thirty-nine".