21368702 has 8 divisors (see below), whose sum is σ = 33446736. Its totient is φ = 10219792.

The previous prime is 21368651. The next prime is 21368707. The reversal of 21368702 is 20786312.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21368707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232223 + ... + 232314.

It is an arithmetic number, because the mean of its divisors is an integer number (4180842).

Almost surely, 2^21368702 is an apocalyptic number.

21368702 is a deficient number, since it is larger than the sum of its proper divisors (12078034).

21368702 is a wasteful number, since it uses less digits than its factorization.

21368702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464562.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 21368702 is about 4622.6293383744. The cubic root of 21368702 is about 277.4976955142.

The spelling of 21368702 in words is "twenty-one million, three hundred sixty-eight thousand, seven hundred two".