641144026 has 8 divisors (see below), whose sum is σ = 962765280. Its totient is φ = 320222268.

The previous prime is 641144011. The next prime is 641144027. The reversal of 641144026 is 620441146.

641144026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×641144026² = 822131324150977352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641143985 and 641144003.

It is not an unprimeable number, because it can be changed into a prime (641144027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172576 + ... + 176251.

It is an arithmetic number, because the mean of its divisors is an integer number (120345660).

Almost surely, 2^641144026 is an apocalyptic number.

641144026 is a deficient number, since it is larger than the sum of its proper divisors (321621254).

641144026 is a wasteful number, since it uses less digits than its factorization.

641144026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349748.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 641144026 is about 25320.8219850778. The cubic root of 641144026 is about 862.2870556286.

The spelling of 641144026 in words is "six hundred forty-one million, one hundred forty-four thousand, twenty-six".