21622802 has 8 divisors (see below), whose sum is σ = 32460912. Its totient is φ = 10802500.

The previous prime is 21622801. The next prime is 21622813. The reversal of 21622802 is 20822612.

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

It is not an unprimeable number, because it can be changed into a prime (21622801) 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, 824 + ... + 6627.

It is an arithmetic number, because the mean of its divisors is an integer number (4057614).

Almost surely, 2^21622802 is an apocalyptic number.

21622802 is a deficient number, since it is larger than the sum of its proper divisors (10838110).

21622802 is a wasteful number, since it uses less digits than its factorization.

21622802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8904.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 21622802 is about 4650.0324730049. The cubic root of 21622802 is about 278.5932932464.

The spelling of 21622802 in words is "twenty-one million, six hundred twenty-two thousand, eight hundred two".