641385462 has 16 divisors (see below), whose sum is σ = 1283320512. Its totient is φ = 213703560.

The previous prime is 641385403. The next prime is 641385487. The reversal of 641385462 is 264583146.

It is a super-2 number, since 2×641385462² = 822750621729906888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641385462.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6864 + ... + 36467.

It is an arithmetic number, because the mean of its divisors is an integer number (80207532).

Almost surely, 2^641385462 is an apocalyptic number.

641385462 is an abundant number, since it is smaller than the sum of its proper divisors (641935050).

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

641385462 is a wasteful number, since it uses less digits than its factorization.

641385462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45803.

The product of its digits is 138240, while the sum is 39.

The square root of 641385462 is about 25325.5890750837. The cubic root of 641385462 is about 862.3952793673.

The spelling of 641385462 in words is "six hundred forty-one million, three hundred eighty-five thousand, four hundred sixty-two".