21367148 has 36 divisors (see below), whose sum is σ = 41537496. Its totient is φ = 9609600.

The previous prime is 21367139. The next prime is 21367163. The reversal of 21367148 is 84176312.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63236 + ... + 63572.

Almost surely, 2^21367148 is an apocalyptic number.

It is an amenable number.

21367148 is a deficient number, since it is larger than the sum of its proper divisors (20170348).

21367148 is a wasteful number, since it uses less digits than its factorization.

21367148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 481 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 21367148 is about 4622.4612491615. The cubic root of 21367148 is about 277.4909685127.

The spelling of 21367148 in words is "twenty-one million, three hundred sixty-seven thousand, one hundred forty-eight".