23302011440 has 20 divisors (see below), whose sum is σ = 54177176784. Its totient is φ = 9320804544.

The previous prime is 23302011437. The next prime is 23302011479. The reversal of 23302011440 is 4411020332.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

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 3 ways as a sum of consecutive naturals, for example, 145637492 + ... + 145637651.

Almost surely, 2^23302011440 is an apocalyptic number.

23302011440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23302011440 is an abundant number, since it is smaller than the sum of its proper divisors (30875165344).

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

23302011440 is a wasteful number, since it uses less digits than its factorization.

23302011440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291275156 (or 291275150 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23302011440 its reverse (4411020332), we get a palindrome (27713031772).

The spelling of 23302011440 in words is "twenty-three billion, three hundred two million, eleven thousand, four hundred forty".