641435214 has 64 divisors (see below), whose sum is σ = 1509640704. Its totient is φ = 177883776.

The previous prime is 641435209. The next prime is 641435227. The reversal of 641435214 is 412534146.

641435214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×641435214² = 822878267518451592, 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 31 ways as a sum of consecutive naturals, for example, 311412 + ... + 313464.

It is an arithmetic number, because the mean of its divisors is an integer number (23588136).

Almost surely, 2^641435214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 641435214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754820352).

641435214 is an abundant number, since it is smaller than the sum of its proper divisors (868205490).

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

641435214 is a wasteful number, since it uses less digits than its factorization.

641435214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281.

The product of its digits is 11520, while the sum is 30.

The square root of 641435214 is about 25326.5713036724. The cubic root of 641435214 is about 862.4175773369.

The spelling of 641435214 in words is "six hundred forty-one million, four hundred thirty-five thousand, two hundred fourteen".