642062622 has 8 divisors (see below), whose sum is σ = 1284125256. Its totient is φ = 214020872.

The previous prime is 642062599. The next prime is 642062623. The reversal of 642062622 is 226260246.

It is a sphenic number, since it is the product of 3 distinct primes.

642062622 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 642062622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642062623) 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 3 ways as a sum of consecutive naturals, for example, 53505213 + ... + 53505224.

It is an arithmetic number, because the mean of its divisors is an integer number (160515657).

Almost surely, 2^642062622 is an apocalyptic number.

642062622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

642062622 is a wasteful number, since it uses less digits than its factorization.

642062622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107010442.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 642062622 is about 25338.9546351068. The cubic root of 642062622 is about 862.6986716460.

The spelling of 642062622 in words is "six hundred forty-two million, sixty-two thousand, six hundred twenty-two".