23195240 has 16 divisors (see below), whose sum is σ = 52189380. Its totient is φ = 9278080.

The previous prime is 23195233. The next prime is 23195243. The reversal of 23195240 is 4259132.

It can be written as a sum of positive squares in 2 ways, for example, as 22905796 + 289444 = 4786^2 + 538^2 .

It is not an unprimeable number, because it can be changed into a prime (23195243) 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 3 ways as a sum of consecutive naturals, for example, 289901 + ... + 289980.

Almost surely, 2^23195240 is an apocalyptic number.

23195240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23195240 is an abundant number, since it is smaller than the sum of its proper divisors (28994140).

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

23195240 is a wasteful number, since it uses less digits than its factorization.

23195240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579892 (or 579888 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 23195240 is about 4816.1436855642. The cubic root of 23195240 is about 285.1891224467.

The spelling of 23195240 in words is "twenty-three million, one hundred ninety-five thousand, two hundred forty".