21114370 has 16 divisors (see below), whose sum is σ = 38465280. Its totient is φ = 8343664.

The previous prime is 21114367. The next prime is 21114397. The reversal of 21114370 is 7341112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11890 + ... + 13549.

It is an arithmetic number, because the mean of its divisors is an integer number (2404080).

Almost surely, 2^21114370 is an apocalyptic number.

21114370 is a deficient number, since it is larger than the sum of its proper divisors (17350910).

21114370 is a wasteful number, since it uses less digits than its factorization.

21114370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25529.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 21114370 is about 4595.0375406519. The cubic root of 21114370 is about 276.3923653492.

Adding to 21114370 its reverse (7341112), we get a palindrome (28455482).

The spelling of 21114370 in words is "twenty-one million, one hundred fourteen thousand, three hundred seventy".