845230491 has 32 divisors (see below), whose sum is σ = 1480435200. Its totient is φ = 466331040.

The previous prime is 845230459. The next prime is 845230499. The reversal of 845230491 is 194032548.

It is not a de Polignac number, because 845230491 - 2⁵ = 845230459 is a prime.

It is a super-2 number, since 2×845230491² = 1428829165832202162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (845230499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71625 + ... + 82586.

It is an arithmetic number, because the mean of its divisors is an integer number (46263600).

Almost surely, 2^845230491 is an apocalyptic number.

845230491 is a deficient number, since it is larger than the sum of its proper divisors (635204709).

845230491 is a wasteful number, since it uses less digits than its factorization.

845230491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154256 (or 154250 counting only the distinct ones).

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

The square root of 845230491 is about 29072.8480029047. The cubic root of 845230491 is about 945.4931464877.

The spelling of 845230491 in words is "eight hundred forty-five million, two hundred thirty thousand, four hundred ninety-one".