642824606 has 16 divisors (see below), whose sum is σ = 1042420560. Its totient is φ = 296265600.

The previous prime is 642824579. The next prime is 642824657. The reversal of 642824606 is 606428246.

642824606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 642824606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227195 + ... + 230006.

It is an arithmetic number, because the mean of its divisors is an integer number (65151285).

Almost surely, 2^642824606 is an apocalyptic number.

642824606 is a deficient number, since it is larger than the sum of its proper divisors (399595954).

642824606 is a wasteful number, since it uses less digits than its factorization.

642824606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457259.

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 642824606 is about 25353.9859982607. The cubic root of 642824606 is about 863.0398131931.

The spelling of 642824606 in words is "six hundred forty-two million, eight hundred twenty-four thousand, six hundred six".