23002555240 has 128 divisors (see below), whose sum is σ = 62103801600. Its totient is φ = 7500810240.

The previous prime is 23002555223. The next prime is 23002555267. The reversal of 23002555240 is 4255520032.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 23002555199 and 23002555208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 522900 + ... + 565180.

It is an arithmetic number, because the mean of its divisors is an integer number (485185950).

Almost surely, 2^23002555240 is an apocalyptic number.

23002555240 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 23002555240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31051900800).

23002555240 is an abundant number, since it is smaller than the sum of its proper divisors (39101246360).

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

23002555240 is a wasteful number, since it uses less digits than its factorization.

23002555240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42395 (or 42391 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The spelling of 23002555240 in words is "twenty-three billion, two million, five hundred fifty-five thousand, two hundred forty".