21413334024 has 24 divisors (see below), whose sum is σ = 57994446510. Its totient is φ = 7137777984.

The previous prime is 21413334013. The next prime is 21413334049. The reversal of 21413334024 is 42043331412.

21413334024 is a `hidden beast` number, since 214 + 13 + 33 + 402 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13153796100 + 8259537924 = 114690^2 + 90882^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 148703637 + ... + 148703780.

Almost surely, 2^21413334024 is an apocalyptic number.

21413334024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21413334024 is an abundant number, since it is smaller than the sum of its proper divisors (36581112486).

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

21413334024 is a wasteful number, since it uses less digits than its factorization.

21413334024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297407429 (or 297407422 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21413334024 its reverse (42043331412), we get a palindrome (63456665436).

The spelling of 21413334024 in words is "twenty-one billion, four hundred thirteen million, three hundred thirty-four thousand, twenty-four".