16213090 has 8 divisors (see below), whose sum is σ = 29183580. Its totient is φ = 6485232.

The previous prime is 16213079. The next prime is 16213097. The reversal of 16213090 is 9031261.

It can be written as a sum of positive squares in 2 ways, for example, as 16184529 + 28561 = 4023^2 + 169^2 .

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

It is not an unprimeable number, because it can be changed into a prime (16213097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810645 + ... + 810664.

Almost surely, 2^16213090 is an apocalyptic number.

16213090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16213090 is a deficient number, since it is larger than the sum of its proper divisors (12970490).

16213090 is a wasteful number, since it uses less digits than its factorization.

16213090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621316.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 16213090 is about 4026.5481494700. The cubic root of 16213090 is about 253.0979326847.

The spelling of 16213090 in words is "sixteen million, two hundred thirteen thousand, ninety".