641322046 has 4 divisors (see below), whose sum is σ = 961983072. Its totient is φ = 320661022.

The previous prime is 641322007. The next prime is 641322047. The reversal of 641322046 is 640223146.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×641322046² = 822587933371252232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641322047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160330510 + ... + 160330513.

It is an arithmetic number, because the mean of its divisors is an integer number (240495768).

Almost surely, 2^641322046 is an apocalyptic number.

641322046 is a deficient number, since it is larger than the sum of its proper divisors (320661026).

641322046 is a wasteful number, since it uses less digits than its factorization.

641322046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320661025.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 641322046 is about 25324.3370298217. The cubic root of 641322046 is about 862.3668557621.

The spelling of 641322046 in words is "six hundred forty-one million, three hundred twenty-two thousand, forty-six".