21422324304 has 60 divisors (see below), whose sum is σ = 60012346836. Its totient is φ = 7133677056.

The previous prime is 21422324239. The next prime is 21422324309. The reversal of 21422324304 is 40342322412.

21422324304 is a `hidden beast` number, since 2 + 1 + 4 + 223 + 2 + 430 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5937010704 + 15485313600 = 77052^2 + 124440^2 .

It is a super-3 number, since 3×21422324304³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21422324309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72444 + ... + 219300.

Almost surely, 2^21422324304 is an apocalyptic number.

21422324304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21422324304 is an abundant number, since it is smaller than the sum of its proper divisors (38590022532).

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

21422324304 is a wasteful number, since it uses less digits than its factorization.

21422324304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147884 (or 147875 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 21422324304 its reverse (40342322412), we get a palindrome (61764646716).

The spelling of 21422324304 in words is "twenty-one billion, four hundred twenty-two million, three hundred twenty-four thousand, three hundred four".