21114080 has 48 divisors (see below), whose sum is σ = 53724384. Its totient is φ = 7795200.

The previous prime is 21114077. The next prime is 21114083. The reversal of 21114080 is 8041112.

It is an interprime number because it is at equal distance from previous prime (21114077) and next prime (21114083).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2996 + ... + 7155.

It is an arithmetic number, because the mean of its divisors is an integer number (1119258).

Almost surely, 2^21114080 is an apocalyptic number.

21114080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21114080 is an abundant number, since it is smaller than the sum of its proper divisors (32610304).

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

21114080 is a wasteful number, since it uses less digits than its factorization.

21114080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10179 (or 10171 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 21114080 is about 4595.0059847622. The cubic root of 21114080 is about 276.3910999527.

Adding to 21114080 its reverse (8041112), we get a palindrome (29155192).

The spelling of 21114080 in words is "twenty-one million, one hundred fourteen thousand, eighty".