642358830 has 32 divisors (see below), whose sum is σ = 1542420000. Its totient is φ = 171211392.

The previous prime is 642358799. The next prime is 642358837. The reversal of 642358830 is 38853246.

642358830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642358837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78576 + ... + 86364.

It is an arithmetic number, because the mean of its divisors is an integer number (48200625).

Almost surely, 2^642358830 is an apocalyptic number.

642358830 is an abundant number, since it is smaller than the sum of its proper divisors (900061170).

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

642358830 is a wasteful number, since it uses less digits than its factorization.

642358830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10548.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 642358830 is about 25344.7988747198. The cubic root of 642358830 is about 862.8313165277.

The spelling of 642358830 in words is "six hundred forty-two million, three hundred fifty-eight thousand, eight hundred thirty".