642528060 has 48 divisors (see below), whose sum is σ = 1861120800. Its totient is φ = 165432064.

The previous prime is 642528053. The next prime is 642528071. The reversal of 642528060 is 60825246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182895 + ... + 186374.

It is an arithmetic number, because the mean of its divisors is an integer number (38773350).

Almost surely, 2^642528060 is an apocalyptic number.

642528060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

642528060 is an abundant number, since it is smaller than the sum of its proper divisors (1218592740).

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

642528060 is a wasteful number, since it uses less digits than its factorization.

642528060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369310 (or 369308 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 642528060 is about 25348.1372096649. The cubic root of 642528060 is about 862.9070810983.

The spelling of 642528060 in words is "six hundred forty-two million, five hundred twenty-eight thousand, sixty".