21233049 has 8 divisors (see below), whose sum is σ = 28913280. Its totient is φ = 13854096.

The previous prime is 21233029. The next prime is 21233059. The reversal of 21233049 is 94033212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21233049 - 2⁷ = 21232921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21233029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75154 + ... + 75435.

It is an arithmetic number, because the mean of its divisors is an integer number (3614160).

Almost surely, 2^21233049 is an apocalyptic number.

It is an amenable number.

21233049 is a deficient number, since it is larger than the sum of its proper divisors (7680231).

21233049 is a wasteful number, since it uses less digits than its factorization.

21233049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150639.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 21233049 is about 4607.9332677460. The cubic root of 21233049 is about 276.9092440324.

The spelling of 21233049 in words is "twenty-one million, two hundred thirty-three thousand, forty-nine".