23210404240 has 40 divisors (see below), whose sum is σ = 53998028280. Its totient is φ = 9278340096.

The previous prime is 23210404201. The next prime is 23210404307. The reversal of 23210404240 is 4240401232.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2809424016 + 20400980224 = 53004^2 + 142832^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 38562 + ... + 218878.

It is an arithmetic number, because the mean of its divisors is an integer number (1349950707).

Almost surely, 2^23210404240 is an apocalyptic number.

23210404240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23210404240 is an abundant number, since it is smaller than the sum of its proper divisors (30787624040).

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

23210404240 is a wasteful number, since it uses less digits than its factorization.

23210404240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181939 (or 181933 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 23210404240 its reverse (4240401232), we get a palindrome (27450805472).

The spelling of 23210404240 in words is "twenty-three billion, two hundred ten million, four hundred four thousand, two hundred forty".