21035332 has 12 divisors (see below), whose sum is σ = 36851836. Its totient is φ = 10506240.

The previous prime is 21035327. The next prime is 21035359. The reversal of 21035332 is 23353012.

It can be written as a sum of positive squares in 2 ways, for example, as 11999296 + 9036036 = 3464^2 + 3006^2 .

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, 2332 + ... + 6892.

Almost surely, 2^21035332 is an apocalyptic number.

It is an amenable number.

21035332 is a deficient number, since it is larger than the sum of its proper divisors (15816504).

21035332 is a wasteful number, since it uses less digits than its factorization.

21035332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718 (or 5716 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 21035332 is about 4586.4291120653. The cubic root of 21035332 is about 276.0470584186.

Adding to 21035332 its reverse (23353012), we get a palindrome (44388344).

The spelling of 21035332 in words is "twenty-one million, thirty-five thousand, three hundred thirty-two".