21301422 has 16 divisors (see below), whose sum is σ = 42768000. Its totient is φ = 7072952.

The previous prime is 21301421. The next prime is 21301439. The reversal of 21301422 is 22410312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5172 + ... + 8327.

It is an arithmetic number, because the mean of its divisors is an integer number (2673000).

Almost surely, 2^21301422 is an apocalyptic number.

21301422 is an abundant number, since it is smaller than the sum of its proper divisors (21466578).

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

21301422 is a wasteful number, since it uses less digits than its factorization.

21301422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13767.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 21301422 is about 4615.3463575337. The cubic root of 21301422 is about 277.2061527133.

Adding to 21301422 its reverse (22410312), we get a palindrome (43711734).

The spelling of 21301422 in words is "twenty-one million, three hundred one thousand, four hundred twenty-two".