21134332 has 24 divisors (see below), whose sum is σ = 40866336. Its totient is φ = 9512448.

The previous prime is 21134293. The next prime is 21134353. The reversal of 21134332 is 23343112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5193 + ... + 8320.

It is an arithmetic number, because the mean of its divisors is an integer number (1702764).

Almost surely, 2^21134332 is an apocalyptic number.

It is an amenable number.

21134332 is a deficient number, since it is larger than the sum of its proper divisors (19732004).

21134332 is a wasteful number, since it uses less digits than its factorization.

21134332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13557 (or 13555 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The square root of 21134332 is about 4597.2091533886. The cubic root of 21134332 is about 276.4794404324.

Adding to 21134332 its reverse (23343112), we get a palindrome (44477444).

It can be divided in two parts, 211 and 34332, that added together give a palindrome (34543).

The spelling of 21134332 in words is "twenty-one million, one hundred thirty-four thousand, three hundred thirty-two".