16199405 has 8 divisors (see below), whose sum is σ = 19478112. Its totient is φ = 12933648.

The previous prime is 16199363. The next prime is 16199411. The reversal of 16199405 is 50499161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16199405 - 2¹⁸ = 15937261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227 + ... + 5696.

It is an arithmetic number, because the mean of its divisors is an integer number (2434764).

Almost surely, 2^16199405 is an apocalyptic number.

It is an amenable number.

16199405 is a deficient number, since it is larger than the sum of its proper divisors (3278707).

16199405 is an equidigital number, since it uses as much as digits as its factorization.

16199405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6475.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 16199405 is about 4024.8484443517. The cubic root of 16199405 is about 253.0267017598.

The spelling of 16199405 in words is "sixteen million, one hundred ninety-nine thousand, four hundred five".