21119208 has 32 divisors (see below), whose sum is σ = 57598560. Its totient is φ = 6399680.

The previous prime is 21119207. The next prime is 21119213. The reversal of 21119208 is 80291112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (21119207) 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, 39735 + ... + 40262.

It is an arithmetic number, because the mean of its divisors is an integer number (1799955).

Almost surely, 2^21119208 is an apocalyptic number.

It is an amenable number.

21119208 is an abundant number, since it is smaller than the sum of its proper divisors (36479352).

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

21119208 is a wasteful number, since it uses less digits than its factorization.

21119208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80017 (or 80013 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 21119208 is about 4595.5639479829. The cubic root of 21119208 is about 276.4134739456.

The spelling of 21119208 in words is "twenty-one million, one hundred nineteen thousand, two hundred eight".