21233038 has 16 divisors (see below), whose sum is σ = 32722560. Its totient is φ = 10329336.

The previous prime is 21233029. The next prime is 21233059. The reversal of 21233038 is 83033212.

It is a happy number.

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, 11281 + ... + 13027.

It is an arithmetic number, because the mean of its divisors is an integer number (2045160).

Almost surely, 2^21233038 is an apocalyptic number.

21233038 is a deficient number, since it is larger than the sum of its proper divisors (11489522).

21233038 is a wasteful number, since it uses less digits than its factorization.

21233038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 21233038 is about 4607.9320741521. The cubic root of 21233038 is about 276.9091962139.

The spelling of 21233038 in words is "twenty-one million, two hundred thirty-three thousand, thirty-eight".