21341210 has 32 divisors (see below), whose sum is σ = 42254784. Its totient is φ = 7696000.

The previous prime is 21341191. The next prime is 21341249. The reversal of 21341210 is 1214312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13670 + ... + 15150.

It is an arithmetic number, because the mean of its divisors is an integer number (1320462).

Almost surely, 2^21341210 is an apocalyptic number.

21341210 is a deficient number, since it is larger than the sum of its proper divisors (20913574).

21341210 is a wasteful number, since it uses less digits than its factorization.

21341210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 21341210 is about 4619.6547490045. The cubic root of 21341210 is about 277.3786391379.

Adding to 21341210 its reverse (1214312), we get a palindrome (22555522).

The spelling of 21341210 in words is "twenty-one million, three hundred forty-one thousand, two hundred ten".