23420322540 has 72 divisors (see below), whose sum is σ = 71064721728. Its totient is φ = 6243390720.

The previous prime is 23420322503. The next prime is 23420322559. The reversal of 23420322540 is 4522302432.

It is a happy number.

23420322540 is a `hidden beast` number, since 234 + 203 + 225 + 4 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 582280 + ... + 621200.

It is an arithmetic number, because the mean of its divisors is an integer number (987010024).

Almost surely, 2^23420322540 is an apocalyptic number.

23420322540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23420322540 is an abundant number, since it is smaller than the sum of its proper divisors (47644399188).

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

23420322540 is a wasteful number, since it uses less digits than its factorization.

23420322540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42279 (or 42274 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 23420322540 its reverse (4522302432), we get a palindrome (27942624972).

The spelling of 23420322540 in words is "twenty-three billion, four hundred twenty million, three hundred twenty-two thousand, five hundred forty".