21114352 has 40 divisors (see below), whose sum is σ = 47648736. Its totient is φ = 8875776.

The previous prime is 21114341. The next prime is 21114361. The reversal of 21114352 is 25341112.

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 in 7 ways as a sum of consecutive naturals, for example, 4158 + ... + 7714.

Almost surely, 2^21114352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21114352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23824368).

21114352 is an abundant number, since it is smaller than the sum of its proper divisors (26534384).

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

21114352 is a wasteful number, since it uses less digits than its factorization.

21114352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625 (or 3619 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 21114352 is about 4595.0355820167. The cubic root of 21114352 is about 276.3922868077.

Adding to 21114352 its reverse (25341112), we get a palindrome (46455464).

The spelling of 21114352 in words is "twenty-one million, one hundred fourteen thousand, three hundred fifty-two".