21442614 has 8 divisors (see below), whose sum is σ = 42885240. Its totient is φ = 7147536.

The previous prime is 21442591. The next prime is 21442637. The reversal of 21442614 is 41624412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21442591) and next prime (21442637).

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

21442614 is an admirable 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, 1786879 + ... + 1786890.

It is an arithmetic number, because the mean of its divisors is an integer number (5360655).

Almost surely, 2^21442614 is an apocalyptic number.

21442614 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.

21442614 is a wasteful number, since it uses less digits than its factorization.

21442614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573774.

The product of its digits is 1536, while the sum is 24.

The square root of 21442614 is about 4630.6170215210. The cubic root of 21442614 is about 277.8172720496.

The spelling of 21442614 in words is "twenty-one million, four hundred forty-two thousand, six hundred fourteen".