642483788 has 12 divisors (see below), whose sum is σ = 1190484792. Its totient is φ = 302345280.

The previous prime is 642483763. The next prime is 642483797. The reversal of 642483788 is 887384246.

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, 4724078 + ... + 4724213.

It is an arithmetic number, because the mean of its divisors is an integer number (99207066).

Almost surely, 2^642483788 is an apocalyptic number.

642483788 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

642483788 is a deficient number, since it is larger than the sum of its proper divisors (548001004).

642483788 is a wasteful number, since it uses less digits than its factorization.

642483788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9448312 (or 9448310 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 50.

The square root of 642483788 is about 25347.2639154604. The cubic root of 642483788 is about 862.8872617306.

The spelling of 642483788 in words is "six hundred forty-two million, four hundred eighty-three thousand, seven hundred eighty-eight".