642683300 has 144 divisors (see below), whose sum is σ = 1721139840. Its totient is φ = 203274240.

The previous prime is 642683287. The next prime is 642683309. The reversal of 642683300 is 3386246.

It is not an unprimeable number, because it can be changed into a prime (642683309) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 630191 + ... + 631209.

It is an arithmetic number, because the mean of its divisors is an integer number (11952360).

Almost surely, 2^642683300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 642683300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (860569920).

642683300 is an abundant number, since it is smaller than the sum of its proper divisors (1078456540).

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

642683300 is a wasteful number, since it uses less digits than its factorization.

642683300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 642683300 is about 25351.1991826817. The cubic root of 642683300 is about 862.9765706229.

The spelling of 642683300 in words is "six hundred forty-two million, six hundred eighty-three thousand, three hundred".