21848226 has 8 divisors (see below), whose sum is σ = 43696464. Its totient is φ = 7282740.

The previous prime is 21848221. The next prime is 21848249. The reversal of 21848226 is 62284812.

It is a happy number.

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

21848226 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (21848221) 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, 1820680 + ... + 1820691.

It is an arithmetic number, because the mean of its divisors is an integer number (5462058).

Almost surely, 2^21848226 is an apocalyptic number.

21848226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21848226 is a wasteful number, since it uses less digits than its factorization.

21848226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641376.

The product of its digits is 12288, while the sum is 33.

The square root of 21848226 is about 4674.2085961155. The cubic root of 21848226 is about 279.5580869264.

The spelling of 21848226 in words is "twenty-one million, eight hundred forty-eight thousand, two hundred twenty-six".