21410132 has 6 divisors (see below), whose sum is σ = 37467738. Its totient is φ = 10705064.

The previous prime is 21410117. The next prime is 21410141. The reversal of 21410132 is 23101412.

It can be written as a sum of positive squares in only one way, i.e., 11195716 + 10214416 = 3346^2 + 3196^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2676263 + ... + 2676270.

It is an arithmetic number, because the mean of its divisors is an integer number (6244623).

Almost surely, 2^21410132 is an apocalyptic number.

It is an amenable number.

21410132 is a deficient number, since it is larger than the sum of its proper divisors (16057606).

21410132 is a wasteful number, since it uses less digits than its factorization.

21410132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352537 (or 5352535 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 21410132 is about 4627.1083842936. The cubic root of 21410132 is about 277.6769188085.

Adding to 21410132 its reverse (23101412), we get a palindrome (44511544).

The spelling of 21410132 in words is "twenty-one million, four hundred ten thousand, one hundred thirty-two".