21341433 has 8 divisors (see below), whose sum is σ = 28518048. Its totient is φ = 14196224.

The previous prime is 21341407. The next prime is 21341479. The reversal of 21341433 is 33414312.

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 21341433 - 2¹⁰ = 21340409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21341533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6216 + ... + 9017.

It is an arithmetic number, because the mean of its divisors is an integer number (3564756).

Almost surely, 2^21341433 is an apocalyptic number.

It is an amenable number.

21341433 is a deficient number, since it is larger than the sum of its proper divisors (7176615).

21341433 is a wasteful number, since it uses less digits than its factorization.

21341433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15703.

The product of its digits is 864, while the sum is 21.

The square root of 21341433 is about 4619.6788849443. The cubic root of 21341433 is about 277.3796052690.

Adding to 21341433 its reverse (33414312), we get a palindrome (54755745).

The spelling of 21341433 in words is "twenty-one million, three hundred forty-one thousand, four hundred thirty-three".