16434999 has 12 divisors (see below), whose sum is σ = 27130896. Its totient is φ = 9391392.

The previous prime is 16434997. The next prime is 16435021. The reversal of 16434999 is 99943461.

It is not a de Polignac number, because 16434999 - 2¹ = 16434997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16434997) 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, 130374 + ... + 130499.

It is an arithmetic number, because the mean of its divisors is an integer number (2260908).

Almost surely, 2^16434999 is an apocalyptic number.

16434999 is a deficient number, since it is larger than the sum of its proper divisors (10695897).

16434999 is a wasteful number, since it uses less digits than its factorization.

16434999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260886 (or 260883 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 16434999 is about 4054.0102367902. The cubic root of 16434999 is about 254.2474235663.

The spelling of 16434999 in words is "sixteen million, four hundred thirty-four thousand, nine hundred ninety-nine".