641012226 has 48 divisors (see below), whose sum is σ = 1333908864. Its totient is φ = 205265248.

The previous prime is 641012219. The next prime is 641012269. The reversal of 641012226 is 622210146.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 641012196 and 641012205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 981316 + ... + 981968.

It is an arithmetic number, because the mean of its divisors is an integer number (27789768).

Almost surely, 2^641012226 is an apocalyptic number.

641012226 is an abundant number, since it is smaller than the sum of its proper divisors (692896638).

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

641012226 is a wasteful number, since it uses less digits than its factorization.

641012226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 641012226 is about 25318.2192501763. The cubic root of 641012226 is about 862.2279647859.

The spelling of 641012226 in words is "six hundred forty-one million, twelve thousand, two hundred twenty-six".