23940225 has 48 divisors (see below), whose sum is σ = 45532800. Its totient is φ = 12317760.

The previous prime is 23940223. The next prime is 23940251. The reversal of 23940225 is 52204932.

23940225 is a `hidden beast` number, since 239 + 402 + 25 = 666.

It is not a de Polignac number, because 23940225 - 2¹ = 23940223 is a prime.

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 not an unprimeable number, because it can be changed into a prime (23940223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18964 + ... + 20186.

It is an arithmetic number, because the mean of its divisors is an integer number (948600).

Almost surely, 2^23940225 is an apocalyptic number.

23940225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23940225 is a deficient number, since it is larger than the sum of its proper divisors (21592575).

23940225 is a wasteful number, since it uses less digits than its factorization.

23940225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271 (or 1260 counting only the distinct ones).

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

The square root of 23940225 is about 4892.8749217612. The cubic root of 23940225 is about 288.2102414506.

The spelling of 23940225 in words is "twenty-three million, nine hundred forty thousand, two hundred twenty-five".