845131032 has 96 divisors (see below), whose sum is σ = 2380276080. Its totient is φ = 270673920.

The previous prime is 845130989. The next prime is 845131037. The reversal of 845131032 is 230131548.

It is a happy number.

It is a super-2 number, since 2×845131032² = 1428492922498770048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 845130987 and 845131005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845131037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195648 + ... + 199920.

Almost surely, 2^845131032 is an apocalyptic number.

845131032 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845131032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1190138040).

845131032 is an abundant number, since it is smaller than the sum of its proper divisors (1535145048).

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

845131032 is a wasteful number, since it uses less digits than its factorization.

845131032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393 (or 4386 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 845131032 is about 29071.1374390477. The cubic root of 845131032 is about 945.4560593687.

The spelling of 845131032 in words is "eight hundred forty-five million, one hundred thirty-one thousand, thirty-two".