845440456 has 16 divisors (see below), whose sum is σ = 1811658240. Its totient is φ = 362331600.

The previous prime is 845440439. The next prime is 845440469. The reversal of 845440456 is 654044548.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7548520 + ... + 7548631.

It is an arithmetic number, because the mean of its divisors is an integer number (113228640).

Almost surely, 2^845440456 is an apocalyptic number.

It is an amenable number.

845440456 is an abundant number, since it is smaller than the sum of its proper divisors (966217784).

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

845440456 is a wasteful number, since it uses less digits than its factorization.

845440456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15097164 (or 15097160 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 40.

The square root of 845440456 is about 29076.4587940141. The cubic root of 845440456 is about 945.5714304724.

The spelling of 845440456 in words is "eight hundred forty-five million, four hundred forty thousand, four hundred fifty-six".