21241614 has 8 divisors (see below), whose sum is σ = 42483240. Its totient is φ = 7080536.

The previous prime is 21241573. The next prime is 21241631. The reversal of 21241614 is 41614212.

It is a happy number.

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

21241614 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1770129 + ... + 1770140.

It is an arithmetic number, because the mean of its divisors is an integer number (5310405).

Almost surely, 2^21241614 is an apocalyptic number.

21241614 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21241614 is a wasteful number, since it uses less digits than its factorization.

21241614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540274.

The product of its digits is 384, while the sum is 21.

The square root of 21241614 is about 4608.8625494801. The cubic root of 21241614 is about 276.9464722993.

Adding to 21241614 its reverse (41614212), we get a palindrome (62855826).

The spelling of 21241614 in words is "twenty-one million, two hundred forty-one thousand, six hundred fourteen".