21468296 has 8 divisors (see below), whose sum is σ = 40253070. Its totient is φ = 10734144.

The previous prime is 21468289. The next prime is 21468353. The reversal of 21468296 is 69286412.

It can be written as a sum of positive squares in only one way, i.e., 15288100 + 6180196 = 3910^2 + 2486^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1341761 + ... + 1341776.

Almost surely, 2^21468296 is an apocalyptic number.

It is an amenable number.

21468296 is a deficient number, since it is larger than the sum of its proper divisors (18784774).

21468296 is a wasteful number, since it uses less digits than its factorization.

21468296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683543 (or 2683539 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 21468296 is about 4633.3892562572. The cubic root of 21468296 is about 277.9281424961.

The spelling of 21468296 in words is "twenty-one million, four hundred sixty-eight thousand, two hundred ninety-six".