7285889640 has 64 divisors (see below), whose sum is σ = 21865685760. Its totient is φ = 1942191360.

The previous prime is 7285889627. The next prime is 7285889651. The reversal of 7285889640 is 469885827.

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, 372177 + ... + 391263.

It is an arithmetic number, because the mean of its divisors is an integer number (341651340).

Almost surely, 2^7285889640 is an apocalyptic number.

It is an amenable number.

7285889640 is an abundant number, since it is smaller than the sum of its proper divisors (14579796120).

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

7285889640 is a wasteful number, since it uses less digits than its factorization.

7285889640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22282 (or 22278 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The square root of 7285889640 is about 85357.4228758109. The cubic root of 7285889640 is about 1938.6267285578.

The spelling of 7285889640 in words is "seven billion, two hundred eighty-five million, eight hundred eighty-nine thousand, six hundred forty".