21060232 has 16 divisors (see below), whose sum is σ = 39536640. Its totient is φ = 10517136.

The previous prime is 21060211. The next prime is 21060257. The reversal of 21060232 is 23206012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11833 + ... + 13495.

It is an arithmetic number, because the mean of its divisors is an integer number (2471040).

Almost surely, 2^21060232 is an apocalyptic number.

It is an amenable number.

21060232 is a deficient number, since it is larger than the sum of its proper divisors (18476408).

21060232 is a wasteful number, since it uses less digits than its factorization.

21060232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252 (or 3248 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 21060232 is about 4589.1428393546. The cubic root of 21060232 is about 276.1559365259.

Adding to 21060232 its reverse (23206012), we get a palindrome (44266244).

The spelling of 21060232 in words is "twenty-one million, sixty thousand, two hundred thirty-two".