16699400 has 24 divisors (see below), whose sum is σ = 38826570. Its totient is φ = 6679680.

The previous prime is 16699393. The next prime is 16699427. The reversal of 16699400 is 499661.

It can be written as a sum of positive squares in 3 ways, for example, as 11600836 + 5098564 = 3406^2 + 2258^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41549 + ... + 41948.

Almost surely, 2^16699400 is an apocalyptic number.

16699400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16699400 is an abundant number, since it is smaller than the sum of its proper divisors (22127170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16699400 is a wasteful number, since it uses less digits than its factorization.

16699400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83513 (or 83504 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 16699400 is about 4086.4899363635. The cubic root of 16699400 is about 255.6035938539.

The spelling of 16699400 in words is "sixteen million, six hundred ninety-nine thousand, four hundred".