23490493 has 12 divisors (see below), whose sum is σ = 26319060. Its totient is φ = 20931456.

The previous prime is 23490487. The next prime is 23490503. The reversal of 23490493 is 39409432.

It can be written as a sum of positive squares in 6 ways, for example, as 708964 + 22781529 = 842^2 + 4773^2 .

It is not a de Polignac number, because 23490493 - 2⁵ = 23490461 is a prime.

It is a super-2 number, since 2×23490493² = 1103606522766098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23490433) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2505 + ... + 7297.

It is an arithmetic number, because the mean of its divisors is an integer number (2193255).

Almost surely, 2^23490493 is an apocalyptic number.

It is an amenable number.

23490493 is a deficient number, since it is larger than the sum of its proper divisors (2828567).

23490493 is a wasteful number, since it uses less digits than its factorization.

23490493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4848 (or 4835 counting only the distinct ones).

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

The square root of 23490493 is about 4846.6991860440. The cubic root of 23490493 is about 286.3940848328.

The spelling of 23490493 in words is "twenty-three million, four hundred ninety thousand, four hundred ninety-three".