845988252 has 12 divisors (see below), whose sum is σ = 1973972616. Its totient is φ = 281996080.

The previous prime is 845988251. The next prime is 845988257. The reversal of 845988252 is 252889548.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×845988252² = 1431392245044031008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 845988195 and 845988204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845988251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35249499 + ... + 35249522.

It is an arithmetic number, because the mean of its divisors is an integer number (164497718).

Almost surely, 2^845988252 is an apocalyptic number.

It is an amenable number.

845988252 is an abundant number, since it is smaller than the sum of its proper divisors (1127984364).

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

845988252 is a wasteful number, since it uses less digits than its factorization.

845988252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70499028 (or 70499026 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 51.

The square root of 845988252 is about 29085.8771915168. The cubic root of 845988252 is about 945.7756113860.

The spelling of 845988252 in words is "eight hundred forty-five million, nine hundred eighty-eight thousand, two hundred fifty-two".