845071404 has 24 divisors (see below), whose sum is σ = 1989286320. Its totient is φ = 279197184.

The previous prime is 845071387. The next prime is 845071427. The reversal of 845071404 is 404170548.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310249 + ... + 312960.

It is an arithmetic number, because the mean of its divisors is an integer number (82886930).

Almost surely, 2^845071404 is an apocalyptic number.

It is an amenable number.

845071404 is an abundant number, since it is smaller than the sum of its proper divisors (1144214916).

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

845071404 is a wasteful number, since it uses less digits than its factorization.

845071404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623329 (or 623327 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 845071404 is about 29070.1118676898. Note that the first 3 decimals coincide. The cubic root of 845071404 is about 945.4338233770.

The spelling of 845071404 in words is "eight hundred forty-five million, seventy-one thousand, four hundred four".