642613300 has 36 divisors (see below), whose sum is σ = 1593682720. Its totient is φ = 220324320.

The previous prime is 642613289. The next prime is 642613313. The reversal of 642613300 is 3316246.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 458310 + ... + 459709.

Almost surely, 2^642613300 is an apocalyptic number.

It is an amenable number.

642613300 is an abundant number, since it is smaller than the sum of its proper divisors (951069420).

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

642613300 is a wasteful number, since it uses less digits than its factorization.

642613300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918040 (or 918033 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 642613300 is about 25349.8185397845. The cubic root of 642613300 is about 862.9452381594.

Adding to 642613300 its reverse (3316246), we get a palindrome (645929546).

The spelling of 642613300 in words is "six hundred forty-two million, six hundred thirteen thousand, three hundred".