21414532 has 6 divisors (see below), whose sum is σ = 37475438. Its totient is φ = 10707264.

The previous prime is 21414529. The next prime is 21414551. The reversal of 21414532 is 23541412.

It can be written as a sum of positive squares in only one way, i.e., 13439556 + 7974976 = 3666^2 + 2824^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2676813 + ... + 2676820.

Almost surely, 2^21414532 is an apocalyptic number.

It is an amenable number.

21414532 is a deficient number, since it is larger than the sum of its proper divisors (16060906).

21414532 is a wasteful number, since it uses less digits than its factorization.

21414532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5353637 (or 5353635 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 21414532 is about 4627.5838187979. The cubic root of 21414532 is about 277.6959393164.

Adding to 21414532 its reverse (23541412), we get a palindrome (44955944).

The spelling of 21414532 in words is "twenty-one million, four hundred fourteen thousand, five hundred thirty-two".