16402199 has 4 divisors (see below), whose sum is σ = 17893320. Its totient is φ = 14911080.

The previous prime is 16402181. The next prime is 16402213. The reversal of 16402199 is 99120461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16402199 - 2⁸ = 16401943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16402129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745544 + ... + 745565.

It is an arithmetic number, because the mean of its divisors is an integer number (4473330).

Almost surely, 2^16402199 is an apocalyptic number.

16402199 is a deficient number, since it is larger than the sum of its proper divisors (1491121).

16402199 is a wasteful number, since it uses less digits than its factorization.

16402199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491120.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 16402199 is about 4049.9628393357. The cubic root of 16402199 is about 254.0781735944.

The spelling of 16402199 in words is "sixteen million, four hundred two thousand, one hundred ninety-nine".