23490216 has 32 divisors (see below), whose sum is σ = 65251200. Its totient is φ = 7830000.

The previous prime is 23490197. The next prime is 23490217. The reversal of 23490216 is 61209432.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 23490216.

It is not an unprimeable number, because it can be changed into a prime (23490217) 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 7 ways as a sum of consecutive naturals, for example, 54160 + ... + 54591.

It is an arithmetic number, because the mean of its divisors is an integer number (2039100).

Almost surely, 2^23490216 is an apocalyptic number.

It is an amenable number.

23490216 is an abundant number, since it is smaller than the sum of its proper divisors (41760984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23490216 is a wasteful number, since it uses less digits than its factorization.

23490216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108766 (or 108756 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 23490216 is about 4846.6706098104. The cubic root of 23490216 is about 286.3929591082.

Adding to 23490216 its reverse (61209432), we get a palindrome (84699648).

The spelling of 23490216 in words is "twenty-three million, four hundred ninety thousand, two hundred sixteen".