641757046 has 32 divisors (see below), whose sum is σ = 1112765760. Its totient is φ = 271904256.

The previous prime is 641757031. The next prime is 641757049. The reversal of 641757046 is 640757146.

641757046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×641757046² = 823704212181292232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641757049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599800 + ... + 600868.

It is an arithmetic number, because the mean of its divisors is an integer number (34773930).

Almost surely, 2^641757046 is an apocalyptic number.

641757046 is a deficient number, since it is larger than the sum of its proper divisors (471008714).

641757046 is a wasteful number, since it uses less digits than its factorization.

641757046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 641757046 is about 25332.9241502042. The cubic root of 641757046 is about 862.5617889221.

The spelling of 641757046 in words is "six hundred forty-one million, seven hundred fifty-seven thousand, forty-six".