16699426 has 16 divisors (see below), whose sum is σ = 26438400. Its totient is φ = 7895008.

The previous prime is 16699393. The next prime is 16699427. The reversal of 16699426 is 62499661.

It is a happy number.

16699426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16699427) 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, 2055 + ... + 6133.

It is an arithmetic number, because the mean of its divisors is an integer number (1652400).

Almost surely, 2^16699426 is an apocalyptic number.

16699426 is a deficient number, since it is larger than the sum of its proper divisors (9738974).

16699426 is a wasteful number, since it uses less digits than its factorization.

16699426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193.

The product of its digits is 139968, while the sum is 43.

The square root of 16699426 is about 4086.4931175765. The cubic root of 16699426 is about 255.6037265072.

The spelling of 16699426 in words is "sixteen million, six hundred ninety-nine thousand, four hundred twenty-six".