641442262 has 16 divisors (see below), whose sum is σ = 1010656512. Its totient is φ = 304741800.

The previous prime is 641442257. The next prime is 641442281. The reversal of 641442262 is 262244146.

It is a happy number.

It is a super-2 number, since 2×641442262² = 822896350959353288, 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, 39228 + ... + 53119.

It is an arithmetic number, because the mean of its divisors is an integer number (63166032).

Almost surely, 2^641442262 is an apocalyptic number.

641442262 is a deficient number, since it is larger than the sum of its proper divisors (369214250).

641442262 is a wasteful number, since it uses less digits than its factorization.

641442262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92523.

The product of its digits is 18432, while the sum is 31.

The square root of 641442262 is about 25326.7104456935. The cubic root of 641442262 is about 862.4207360331.

The spelling of 641442262 in words is "six hundred forty-one million, four hundred forty-two thousand, two hundred sixty-two".