21882104 has 8 divisors (see below), whose sum is σ = 41028960. Its totient is φ = 10941048.

The previous prime is 21882101. The next prime is 21882137. The reversal of 21882104 is 40128812.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21882101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1367624 + ... + 1367639.

It is an arithmetic number, because the mean of its divisors is an integer number (5128620).

Almost surely, 2^21882104 is an apocalyptic number.

It is an amenable number.

21882104 is a deficient number, since it is larger than the sum of its proper divisors (19146856).

21882104 is a wasteful number, since it uses less digits than its factorization.

21882104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735269 (or 2735265 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 21882104 is about 4677.8311213638. The cubic root of 21882104 is about 279.7025071627.

The spelling of 21882104 in words is "twenty-one million, eight hundred eighty-two thousand, one hundred four".