21014350 has 24 divisors (see below), whose sum is σ = 44671248. Its totient is φ = 7204800.

The previous prime is 21014347. The next prime is 21014351. The reversal of 21014350 is 5341012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21014351) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 29671 + ... + 30370.

It is an arithmetic number, because the mean of its divisors is an integer number (1861302).

Almost surely, 2^21014350 is an apocalyptic number.

21014350 is an abundant number, since it is smaller than the sum of its proper divisors (23656898).

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

21014350 is a wasteful number, since it uses less digits than its factorization.

21014350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60060 (or 60055 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 21014350 is about 4584.1411409336. The cubic root of 21014350 is about 275.9552454913.

Adding to 21014350 its reverse (5341012), we get a palindrome (26355362).

The spelling of 21014350 in words is "twenty-one million, fourteen thousand, three hundred fifty".