642303260 has 24 divisors (see below), whose sum is σ = 1392349056. Its totient is φ = 248633280.

The previous prime is 642303257. The next prime is 642303271. The reversal of 642303260 is 62303246.

It is a super-3 number, since 3×642303260³ (a number of 27 digits) contains 333 as substring.

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, 517367 + ... + 518606.

It is an arithmetic number, because the mean of its divisors is an integer number (58014544).

Almost surely, 2^642303260 is an apocalyptic number.

It is an amenable number.

642303260 is an abundant number, since it is smaller than the sum of its proper divisors (750045796).

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

642303260 is a wasteful number, since it uses less digits than its factorization.

642303260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036013 (or 1036011 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 642303260 is about 25343.7025708557. The cubic root of 642303260 is about 862.8064348382.

The spelling of 642303260 in words is "six hundred forty-two million, three hundred three thousand, two hundred sixty".