845032040 has 16 divisors (see below), whose sum is σ = 1901322180. Its totient is φ = 338012800.

The previous prime is 845032033. The next prime is 845032063. The reversal of 845032040 is 40230548.

It can be written as a sum of positive squares in 2 ways, for example, as 810996484 + 34035556 = 28478^2 + 5834^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10562861 + ... + 10562940.

Almost surely, 2^845032040 is an apocalyptic number.

It is an amenable number.

845032040 is an abundant number, since it is smaller than the sum of its proper divisors (1056290140).

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

845032040 is a wasteful number, since it uses less digits than its factorization.

845032040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21125812 (or 21125808 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 845032040 is about 29069.4348070271. The cubic root of 845032040 is about 945.4191434991.

Adding to 845032040 its reverse (40230548), we get a palindrome (885262588).

The spelling of 845032040 in words is "eight hundred forty-five million, thirty-two thousand, forty".