641383542 has 16 divisors (see below), whose sum is σ = 1425296880. Its totient is φ = 213794496.

The previous prime is 641383529. The next prime is 641383601. The reversal of 641383542 is 245383146.

641383542 is a `hidden beast` number, since 641 + 3 + 8 + 3 + 5 + 4 + 2 = 666.

It is a super-2 number, since 2×641383542² = 822745695896931528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641383497 and 641383506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5938683 + ... + 5938790.

It is an arithmetic number, because the mean of its divisors is an integer number (89081055).

Almost surely, 2^641383542 is an apocalyptic number.

641383542 is an abundant number, since it is smaller than the sum of its proper divisors (783913338).

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

641383542 is a wasteful number, since it uses less digits than its factorization.

641383542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11877484 (or 11877478 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 641383542 is about 25325.5511687308. The cubic root of 641383542 is about 862.3944188341.

The spelling of 641383542 in words is "six hundred forty-one million, three hundred eighty-three thousand, five hundred forty-two".