845209026 has 32 divisors (see below), whose sum is σ = 1988729280. Its totient is φ = 265163328.

The previous prime is 845208983. The next prime is 845209049. The reversal of 845209026 is 620902548.

It is a happy number.

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, 459436 + ... + 461271.

It is an arithmetic number, because the mean of its divisors is an integer number (62147790).

Almost surely, 2^845209026 is an apocalyptic number.

845209026 is an abundant number, since it is smaller than the sum of its proper divisors (1143520254).

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

845209026 is a wasteful number, since it uses less digits than its factorization.

845209026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920735 (or 920729 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 845209026 is about 29072.4788416812. The cubic root of 845209026 is about 945.4851426819.

The spelling of 845209026 in words is "eight hundred forty-five million, two hundred nine thousand, twenty-six".