641373330 has 32 divisors (see below), whose sum is σ = 1657704384. Its totient is φ = 157876416.

The previous prime is 641373323. The next prime is 641373361. The reversal of 641373330 is 33373146.

It is a super-2 number, since 2×641373330² = 822719496870577800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 821884 + ... + 822663.

It is an arithmetic number, because the mean of its divisors is an integer number (51803262).

Almost surely, 2^641373330 is an apocalyptic number.

641373330 is an abundant number, since it is smaller than the sum of its proper divisors (1016331054).

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

641373330 is a wasteful number, since it uses less digits than its factorization.

641373330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644570.

The product of its (nonzero) digits is 13608, while the sum is 30.

The square root of 641373330 is about 25325.3495533625. The cubic root of 641373330 is about 862.3898418439.

The spelling of 641373330 in words is "six hundred forty-one million, three hundred seventy-three thousand, three hundred thirty".