21114328 has 8 divisors (see below), whose sum is σ = 39589380. Its totient is φ = 10557160.

The previous prime is 21114319. The next prime is 21114337. The reversal of 21114328 is 82341112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21114319) and next prime (21114337).

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 21114299 and 21114308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319638 + ... + 1319653.

Almost surely, 2^21114328 is an apocalyptic number.

It is an amenable number.

21114328 is a deficient number, since it is larger than the sum of its proper divisors (18475052).

21114328 is a wasteful number, since it uses less digits than its factorization.

21114328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639297 (or 2639293 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 21114328 is about 4595.0329705020. The cubic root of 21114328 is about 276.3921820856.

The spelling of 21114328 in words is "twenty-one million, one hundred fourteen thousand, three hundred twenty-eight".