23894446240 has 144 divisors (see below), whose sum is σ = 65958769800. Its totient is φ = 8155994112.

The previous prime is 23894446229. The next prime is 23894446273. The reversal of 23894446240 is 4264449832.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17296458256 + 6597987984 = 131516^2 + 81228^2 .

It is a super-2 number, since 2×23894446240² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1788706 + ... + 1802014.

Almost surely, 2^23894446240 is an apocalyptic number.

23894446240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23894446240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32979384900).

23894446240 is an abundant number, since it is smaller than the sum of its proper divisors (42064323560).

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

23894446240 is a wasteful number, since it uses less digits than its factorization.

23894446240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13567 (or 13552 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 46.

The spelling of 23894446240 in words is "twenty-three billion, eight hundred ninety-four million, four hundred forty-six thousand, two hundred forty".