21314922 has 32 divisors (see below), whose sum is σ = 45165120. Its totient is φ = 6687360.

The previous prime is 21314893. The next prime is 21314927. The reversal of 21314922 is 22941312.

It is a junction number, because it is equal to n+sod(n) for n = 21314892 and 21314901.

It is not an unprimeable number, because it can be changed into a prime (21314927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20118 + ... + 21150.

It is an arithmetic number, because the mean of its divisors is an integer number (1411410).

Almost surely, 2^21314922 is an apocalyptic number.

21314922 is an abundant number, since it is smaller than the sum of its proper divisors (23850198).

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

21314922 is a wasteful number, since it uses less digits than its factorization.

21314922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its digits is 864, while the sum is 24.

The square root of 21314922 is about 4616.8086380096. The cubic root of 21314922 is about 277.2647011171.

The spelling of 21314922 in words is "twenty-one million, three hundred fourteen thousand, nine hundred twenty-two".