16090493 has 4 divisors (see below), whose sum is σ = 16098528. Its totient is φ = 16082460.

The previous prime is 16090453. The next prime is 16090499. The reversal of 16090493 is 39409061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39409061 = 3331 ⋅11831.

It is a cyclic number.

It is not a de Polignac number, because 16090493 - 2⁸ = 16090237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16090499) 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, 1688 + ... + 5918.

It is an arithmetic number, because the mean of its divisors is an integer number (4024632).

Almost surely, 2^16090493 is an apocalyptic number.

It is an amenable number.

16090493 is a deficient number, since it is larger than the sum of its proper divisors (8035).

16090493 is an equidigital number, since it uses as much as digits as its factorization.

16090493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8034.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 16090493 is about 4011.2956759631. The cubic root of 16090493 is about 252.4583756502.

The spelling of 16090493 in words is "sixteen million, ninety thousand, four hundred ninety-three".