21233035 has 8 divisors (see below), whose sum is σ = 25507440. Its totient is φ = 16967904.

The previous prime is 21233029. The next prime is 21233059. The reversal of 21233035 is 53033212.

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

It is a cyclic number.

It is not a de Polignac number, because 21233035 - 2³ = 21233027 is a prime.

It is a super-2 number, since 2×21233035² = 901683550622450, which contains 22 as substring.

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, 4609 + ... + 7981.

It is an arithmetic number, because the mean of its divisors is an integer number (3188430).

Almost surely, 2^21233035 is an apocalyptic number.

21233035 is a deficient number, since it is larger than the sum of its proper divisors (4274405).

21233035 is a wasteful number, since it uses less digits than its factorization.

21233035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4637.

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

The square root of 21233035 is about 4607.9317486265. The cubic root of 21233035 is about 276.9091831724.

Adding to 21233035 its reverse (53033212), we get a palindrome (74266247).

The spelling of 21233035 in words is "twenty-one million, two hundred thirty-three thousand, thirty-five".