641422435 has 8 divisors (see below), whose sum is σ = 796248720. Its totient is φ = 495443424.

The previous prime is 641422433. The next prime is 641422447. The reversal of 641422435 is 534224146.

641422435 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 not a de Polignac number, because 641422435 - 2¹ = 641422433 is a prime.

It is a super-2 number, since 2×641422435² = 822845480242658450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641422397 and 641422406.

It is not an unprimeable number, because it can be changed into a prime (641422433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2211657 + ... + 2211946.

It is an arithmetic number, because the mean of its divisors is an integer number (99531090).

Almost surely, 2^641422435 is an apocalyptic number.

641422435 is a deficient number, since it is larger than the sum of its proper divisors (154826285).

641422435 is a wasteful number, since it uses less digits than its factorization.

641422435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423637.

The product of its digits is 23040, while the sum is 31.

The square root of 641422435 is about 25326.3190179702. The cubic root of 641422435 is about 862.4118501244.

The spelling of 641422435 in words is "six hundred forty-one million, four hundred twenty-two thousand, four hundred thirty-five".