642626300 has 72 divisors (see below), whose sum is σ = 1444449216. Its totient is φ = 248002560.

The previous prime is 642626297. The next prime is 642626321. The reversal of 642626300 is 3626246.

It is a super-2 number, since 2×642626300² = 825937122903380000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 342164 + ... + 344036.

Almost surely, 2^642626300 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 642626300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (722224608).

642626300 is an abundant number, since it is smaller than the sum of its proper divisors (801822916).

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

642626300 is a wasteful number, since it uses less digits than its factorization.

642626300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007 (or 2000 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 642626300 is about 25350.0749505795. The cubic root of 642626300 is about 862.9510572175.

The spelling of 642626300 in words is "six hundred forty-two million, six hundred twenty-six thousand, three hundred".