21883267440 has 60 divisors (see below), whose sum is σ = 73491308904. Its totient is φ = 5835537792.

The previous prime is 21883267411. The next prime is 21883267507. The reversal of 21883267440 is 4476238812.

It is a happy number.

21883267440 is a `hidden beast` number, since 2 + 188 + 3 + 26 + 7 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15195994 + ... + 15197433.

Almost surely, 2^21883267440 is an apocalyptic number.

21883267440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21883267440 is an abundant number, since it is smaller than the sum of its proper divisors (51608041464).

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

21883267440 is a wasteful number, since it uses less digits than its factorization.

21883267440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30393446 (or 30393437 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 21883267440 in words is "twenty-one billion, eight hundred eighty-three million, two hundred sixty-seven thousand, four hundred forty".