23280839140 has 24 divisors (see below), whose sum is σ = 52650513720. Its totient is φ = 8596002048.

The previous prime is 23280839129. The next prime is 23280839171. The reversal of 23280839140 is 4193808232.

It can be written as a sum of positive squares in 4 ways, for example, as 184742464 + 23096096676 = 13592^2 + 151974^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23280839093 and 23280839102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44770585 + ... + 44771104.

It is an arithmetic number, because the mean of its divisors is an integer number (2193771405).

Almost surely, 2^23280839140 is an apocalyptic number.

23280839140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23280839140 is an abundant number, since it is smaller than the sum of its proper divisors (29369674580).

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

23280839140 is a wasteful number, since it uses less digits than its factorization.

23280839140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89541711 (or 89541709 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 23280839140 in words is "twenty-three billion, two hundred eighty million, eight hundred thirty-nine thousand, one hundred forty".