21341662 has 8 divisors (see below), whose sum is σ = 32034096. Its totient is φ = 10663632.

The previous prime is 21341659. The next prime is 21341687. The reversal of 21341662 is 26614312.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1618 + ... + 6730.

It is an arithmetic number, because the mean of its divisors is an integer number (4004262).

Almost surely, 2^21341662 is an apocalyptic number.

21341662 is a deficient number, since it is larger than the sum of its proper divisors (10692434).

21341662 is a wasteful number, since it uses less digits than its factorization.

21341662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7202.

The product of its digits is 1728, while the sum is 25.

The square root of 21341662 is about 4619.7036701503. The cubic root of 21341662 is about 277.3805973877.

Adding to 21341662 its reverse (26614312), we get a palindrome (47955974).

The spelling of 21341662 in words is "twenty-one million, three hundred forty-one thousand, six hundred sixty-two".