21369196 has 6 divisors (see below), whose sum is σ = 37396100. Its totient is φ = 10684596.

The previous prime is 21369109. The next prime is 21369209. The reversal of 21369196 is 69196312.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2671146 + ... + 2671153.

Almost surely, 2^21369196 is an apocalyptic number.

It is an amenable number.

21369196 is a deficient number, since it is larger than the sum of its proper divisors (16026904).

21369196 is a wasteful number, since it uses less digits than its factorization.

21369196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5342303 (or 5342301 counting only the distinct ones).

The product of its digits is 17496, while the sum is 37.

The square root of 21369196 is about 4622.6827708594. The cubic root of 21369196 is about 277.4998338878.

The spelling of 21369196 in words is "twenty-one million, three hundred sixty-nine thousand, one hundred ninety-six".