643050542 has 8 divisors (see below), whose sum is σ = 964710000. Its totient is φ = 321480544.

The previous prime is 643050521. The next prime is 643050571. The reversal of 643050542 is 245050346.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134 + ... + 35862.

It is an arithmetic number, because the mean of its divisors is an integer number (120588750).

Almost surely, 2^643050542 is an apocalyptic number.

643050542 is a deficient number, since it is larger than the sum of its proper divisors (321659458).

643050542 is a wasteful number, since it uses less digits than its factorization.

643050542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44730.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 643050542 is about 25358.4412375840. The cubic root of 643050542 is about 863.1409133072.

The spelling of 643050542 in words is "six hundred forty-three million, fifty thousand, five hundred forty-two".