21733043304 has 192 divisors, whose sum is σ = 67158020160. Its totient is φ = 5823498240.

The previous prime is 21733043291. The next prime is 21733043309. The reversal of 21733043304 is 40334033712.

It is not an unprimeable number, because it can be changed into a prime (21733043309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6135774 + ... + 6139314.

It is an arithmetic number, because the mean of its divisors is an integer number (349781355).

Almost surely, 2^21733043304 is an apocalyptic number.

21733043304 is a gapful number since it is divisible by the number (24) 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 21733043304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33579010080).

21733043304 is an abundant number, since it is smaller than the sum of its proper divisors (45424976856).

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

21733043304 is a wasteful number, since it uses less digits than its factorization.

21733043304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888 (or 3877 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 30.

The spelling of 21733043304 in words is "twenty-one billion, seven hundred thirty-three million, forty-three thousand, three hundred four".