21048914 has 8 divisors (see below), whose sum is σ = 31656960. Its totient is φ = 10496596.

The previous prime is 21048913. The next prime is 21048917. The reversal of 21048914 is 41984012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21048913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12974 + ... + 14505.

It is an arithmetic number, because the mean of its divisors is an integer number (3957120).

Almost surely, 2^21048914 is an apocalyptic number.

21048914 is a deficient number, since it is larger than the sum of its proper divisors (10608046).

21048914 is a wasteful number, since it uses less digits than its factorization.

21048914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27864.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 21048914 is about 4587.9095457517. The cubic root of 21048914 is about 276.1064579169.

The spelling of 21048914 in words is "twenty-one million, forty-eight thousand, nine hundred fourteen".