21935226 has 16 divisors (see below), whose sum is σ = 43934400. Its totient is φ = 7301088.

The previous prime is 21935213. The next prime is 21935227. The reversal of 21935226 is 62253912.

It is a junction number, because it is equal to n+sod(n) for n = 21935193 and 21935202.

It is not an unprimeable number, because it can be changed into a prime (21935227) 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, 2595 + ... + 7113.

It is an arithmetic number, because the mean of its divisors is an integer number (2745900).

Almost surely, 2^21935226 is an apocalyptic number.

21935226 is an abundant number, since it is smaller than the sum of its proper divisors (21999174).

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

21935226 is a wasteful number, since it uses less digits than its factorization.

21935226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333.

The product of its digits is 6480, while the sum is 30.

The square root of 21935226 is about 4683.5057382264. The cubic root of 21935226 is about 279.9286637999.

The spelling of 21935226 in words is "twenty-one million, nine hundred thirty-five thousand, two hundred twenty-six".