641103822 has 20 divisors (see below), whose sum is σ = 1436547816. Its totient is φ = 213701220.

The previous prime is 641103811. The next prime is 641103823. The reversal of 641103822 is 228301146.

641103822 is a `hidden beast` number, since 641 + 10 + 3 + 8 + 2 + 2 = 666.

It is a super-2 number, since 2×641103822² = 822028221166015368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641103823) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1978554 + ... + 1978877.

Almost surely, 2^641103822 is an apocalyptic number.

641103822 is an abundant number, since it is smaller than the sum of its proper divisors (795443994).

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

641103822 is a wasteful number, since it uses less digits than its factorization.

641103822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3957445 (or 3957436 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 641103822 is about 25320.0280805531. The cubic root of 641103822 is about 862.2690315383.

Adding to 641103822 its reverse (228301146), we get a palindrome (869404968).

The spelling of 641103822 in words is "six hundred forty-one million, one hundred three thousand, eight hundred twenty-two".