845057740 has 12 divisors (see below), whose sum is σ = 1774621296. Its totient is φ = 338023088.

The previous prime is 845057729. The next prime is 845057749. The reversal of 845057740 is 47750548.

It is a junction number, because it is equal to n+sod(n) for n = 845057693 and 845057702.

It is not an unprimeable number, because it can be changed into a prime (845057749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21126424 + ... + 21126463.

It is an arithmetic number, because the mean of its divisors is an integer number (147885108).

Almost surely, 2^845057740 is an apocalyptic number.

It is an amenable number.

845057740 is an abundant number, since it is smaller than the sum of its proper divisors (929563556).

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

845057740 is a wasteful number, since it uses less digits than its factorization.

845057740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42252896 (or 42252894 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 845057740 is about 29069.8768487244. The cubic root of 845057740 is about 945.4287277612.

The spelling of 845057740 in words is "eight hundred forty-five million, fifty-seven thousand, seven hundred forty".