23640260146 has 32 divisors (see below), whose sum is σ = 38151933120. Its totient is φ = 10946804736.

The previous prime is 23640260143. The next prime is 23640260159. The reversal of 23640260146 is 64106204632.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (23640260143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511905 + ... + 556171.

It is an arithmetic number, because the mean of its divisors is an integer number (1192247910).

Almost surely, 2^23640260146 is an apocalyptic number.

23640260146 is a deficient number, since it is larger than the sum of its proper divisors (14511672974).

23640260146 is a wasteful number, since it uses less digits than its factorization.

23640260146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44538.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 23640260146 its reverse (64106204632), we get a palindrome (87746464778).

The spelling of 23640260146 in words is "twenty-three billion, six hundred forty million, two hundred sixty thousand, one hundred forty-six".