641938270 has 8 divisors (see below), whose sum is σ = 1155488904. Its totient is φ = 256775304.

The previous prime is 641938249. The next prime is 641938289. The reversal of 641938270 is 72839146.

641938270 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32096904 + ... + 32096923.

It is an arithmetic number, because the mean of its divisors is an integer number (144436113).

Almost surely, 2^641938270 is an apocalyptic number.

641938270 is a deficient number, since it is larger than the sum of its proper divisors (513550634).

641938270 is a wasteful number, since it uses less digits than its factorization.

641938270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64193834.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 641938270 is about 25336.5007449727. The cubic root of 641938270 is about 862.6429734280.

The spelling of 641938270 in words is "six hundred forty-one million, nine hundred thirty-eight thousand, two hundred seventy".