16199090 has 8 divisors (see below), whose sum is σ = 29158380. Its totient is φ = 6479632.

The previous prime is 16199083. The next prime is 16199093. The reversal of 16199090 is 9099161.

It can be written as a sum of positive squares in 2 ways, for example, as 13667809 + 2531281 = 3697^2 + 1591^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 16199090.

It is not an unprimeable number, because it can be changed into a prime (16199093) 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, 809945 + ... + 809964.

Almost surely, 2^16199090 is an apocalyptic number.

16199090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16199090 is a deficient number, since it is larger than the sum of its proper divisors (12959290).

16199090 is a wasteful number, since it uses less digits than its factorization.

16199090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619916.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 16199090 is about 4024.8093122532. The cubic root of 16199090 is about 253.0250617010.

The spelling of 16199090 in words is "sixteen million, one hundred ninety-nine thousand, ninety".