21883426 has 8 divisors (see below), whose sum is σ = 33132240. Its totient is φ = 10839348.

The previous prime is 21883423. The next prime is 21883439. The reversal of 21883426 is 62438812.

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

It is a junction number, because it is equal to n+sod(n) for n = 21883391 and 21883400.

It is not an unprimeable number, because it can be changed into a prime (21883423) 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, 50916 + ... + 51343.

It is an arithmetic number, because the mean of its divisors is an integer number (4141530).

Almost surely, 2^21883426 is an apocalyptic number.

21883426 is a deficient number, since it is larger than the sum of its proper divisors (11248814).

21883426 is a wasteful number, since it uses less digits than its factorization.

21883426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102368.

The product of its digits is 18432, while the sum is 34.

The square root of 21883426 is about 4677.9724240316. The cubic root of 21883426 is about 279.7081397604.

The spelling of 21883426 in words is "twenty-one million, eight hundred eighty-three thousand, four hundred twenty-six".