645236060 has 48 divisors (see below), whose sum is σ = 1550900736. Its totient is φ = 220890432.

The previous prime is 645235963. The next prime is 645236099. The reversal of 645236060 is 60632546.

645236060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 100919 + ... + 107121.

It is an arithmetic number, because the mean of its divisors is an integer number (32310432).

Almost surely, 2^645236060 is an apocalyptic number.

It is an amenable number.

645236060 is an abundant number, since it is smaller than the sum of its proper divisors (905664676).

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

645236060 is a wasteful number, since it uses less digits than its factorization.

645236060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6962 (or 6960 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 645236060 is about 25401.4971999684. The cubic root of 645236060 is about 864.1176519454.

The spelling of 645236060 in words is "six hundred forty-five million, two hundred thirty-six thousand, sixty".