641174938 has 8 divisors (see below), whose sum is σ = 964274688. Its totient is φ = 319750044.

The previous prime is 641174929. The next prime is 641174939. The reversal of 641174938 is 839471146.

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

It is a super-2 number, since 2×641174938² = 822210602238607688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641174894 and 641174903.

It is not an unprimeable number, because it can be changed into a prime (641174939) 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, 417756 + ... + 419287.

It is an arithmetic number, because the mean of its divisors is an integer number (120534336).

Almost surely, 2^641174938 is an apocalyptic number.

641174938 is a deficient number, since it is larger than the sum of its proper divisors (323099750).

641174938 is a wasteful number, since it uses less digits than its factorization.

641174938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837428.

The product of its digits is 145152, while the sum is 43.

The square root of 641174938 is about 25321.4323844446. The cubic root of 641174938 is about 862.3009134557.

The spelling of 641174938 in words is "six hundred forty-one million, one hundred seventy-four thousand, nine hundred thirty-eight".