21359022 has 16 divisors (see below), whose sum is σ = 44191440. Its totient is φ = 6874112.

The previous prime is 21359017. The next prime is 21359047. The reversal of 21359022 is 22095312.

It is a junction number, because it is equal to n+sod(n) for n = 21358983 and 21359001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61203 + ... + 61550.

It is an arithmetic number, because the mean of its divisors is an integer number (2761965).

Almost surely, 2^21359022 is an apocalyptic number.

21359022 is an abundant number, since it is smaller than the sum of its proper divisors (22832418).

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

21359022 is a wasteful number, since it uses less digits than its factorization.

21359022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122787.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 21359022 is about 4621.5821966076. The cubic root of 21359022 is about 277.4557871287.

The spelling of 21359022 in words is "twenty-one million, three hundred fifty-nine thousand, twenty-two".