21648114 has 32 divisors (see below), whose sum is σ = 48263040. Its totient is φ = 7192656.

The previous prime is 21648079. The next prime is 21648127. The reversal of 21648114 is 41184612.

It is a happy number.

21648114 is a `hidden beast` number, since 2 + 1 + 648 + 1 + 14 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26764 + ... + 27560.

It is an arithmetic number, because the mean of its divisors is an integer number (1508220).

Almost surely, 2^21648114 is an apocalyptic number.

21648114 is an abundant number, since it is smaller than the sum of its proper divisors (26614926).

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

21648114 is a wasteful number, since it uses less digits than its factorization.

21648114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311 (or 1305 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 21648114 is about 4652.7533783772. The cubic root of 21648114 is about 278.7019594528.

The spelling of 21648114 in words is "twenty-one million, six hundred forty-eight thousand, one hundred fourteen".