23705452420 has 24 divisors (see below), whose sum is σ = 53610792984. Its totient is φ = 8752782336.

The previous prime is 23705452373. The next prime is 23705452457. The reversal of 23705452420 is 2425450732.

It can be written as a sum of positive squares in 4 ways, for example, as 1282785856 + 22422666564 = 35816^2 + 149742^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45587149 + ... + 45587668.

It is an arithmetic number, because the mean of its divisors is an integer number (2233783041).

Almost surely, 2^23705452420 is an apocalyptic number.

23705452420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23705452420 is an abundant number, since it is smaller than the sum of its proper divisors (29905340564).

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

23705452420 is a wasteful number, since it uses less digits than its factorization.

23705452420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91174839 (or 91174837 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 34.

The spelling of 23705452420 in words is "twenty-three billion, seven hundred five million, four hundred fifty-two thousand, four hundred twenty".