23490225 has 36 divisors (see below), whose sum is σ = 45903312. Its totient is φ = 11388000.

The previous prime is 23490217. The next prime is 23490241. The reversal of 23490225 is 52209432.

It is not a de Polignac number, because 23490225 - 2³ = 23490217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2271 + ... + 7220.

It is an arithmetic number, because the mean of its divisors is an integer number (1275092).

Almost surely, 2^23490225 is an apocalyptic number.

23490225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23490225 is a deficient number, since it is larger than the sum of its proper divisors (22413087).

23490225 is a wasteful number, since it uses less digits than its factorization.

23490225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9518 (or 9510 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 23490225 is about 4846.6715382827. The cubic root of 23490225 is about 286.3929956843.

Adding to 23490225 its reverse (52209432), we get a palindrome (75699657).

The spelling of 23490225 in words is "twenty-three million, four hundred ninety thousand, two hundred twenty-five".