641220214 has 16 divisors (see below), whose sum is σ = 990114048. Its totient is φ = 311271912.

The previous prime is 641220199. The next prime is 641220233. The reversal of 641220214 is 412022146.

It is a happy number.

It is a super-2 number, since 2×641220214² = 822326725684411592, which contains 22 as substring.

It is a congruent number.

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, 7962 + ... + 36685.

It is an arithmetic number, because the mean of its divisors is an integer number (61882128).

Almost surely, 2^641220214 is an apocalyptic number.

641220214 is a deficient number, since it is larger than the sum of its proper divisors (348893834).

641220214 is a wasteful number, since it uses less digits than its factorization.

641220214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44859.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 641220214 is about 25322.3263939157. The cubic root of 641220214 is about 862.3212098495.

The spelling of 641220214 in words is "six hundred forty-one million, two hundred twenty thousand, two hundred fourteen".