641646462 has 8 divisors (see below), whose sum is σ = 1283292936. Its totient is φ = 213882152.

The previous prime is 641646457. The next prime is 641646469. The reversal of 641646462 is 264646146.

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

641646462 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 641646462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641646469) 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, 53470533 + ... + 53470544.

It is an arithmetic number, because the mean of its divisors is an integer number (160411617).

Almost surely, 2^641646462 is an apocalyptic number.

641646462 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

641646462 is a wasteful number, since it uses less digits than its factorization.

641646462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106941082.

The product of its digits is 165888, while the sum is 39.

The square root of 641646462 is about 25330.7414419713. The cubic root of 641646462 is about 862.5122421283.

The spelling of 641646462 in words is "six hundred forty-one million, six hundred forty-six thousand, four hundred sixty-two".