16236493 has 24 divisors (see below), whose sum is σ = 20684160. Its totient is φ = 12630240.

The previous prime is 16236487. The next prime is 16236503. The reversal of 16236493 is 39463261.

It is a happy number.

It is not a de Polignac number, because 16236493 - 2¹⁷ = 16105421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16236403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45048 + ... + 45406.

It is an arithmetic number, because the mean of its divisors is an integer number (861840).

Almost surely, 2^16236493 is an apocalyptic number.

16236493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16236493 is a deficient number, since it is larger than the sum of its proper divisors (4447667).

16236493 is a wasteful number, since it uses less digits than its factorization.

16236493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 450 counting only the distinct ones).

The product of its digits is 23328, while the sum is 34.

The square root of 16236493 is about 4029.4531887094. The cubic root of 16236493 is about 253.2196533273.

The spelling of 16236493 in words is "sixteen million, two hundred thirty-six thousand, four hundred ninety-three".