845412788 has 48 divisors (see below), whose sum is σ = 1716422400. Its totient is φ = 360084480.

The previous prime is 845412787. The next prime is 845412791. The reversal of 845412788 is 887214548.

It is a super-2 number, since 2×845412788² = 1429445564227865888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845412787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176408 + ... + 181136.

It is an arithmetic number, because the mean of its divisors is an integer number (35758800).

Almost surely, 2^845412788 is an apocalyptic number.

It is an amenable number.

845412788 is an abundant number, since it is smaller than the sum of its proper divisors (871009612).

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

845412788 is a wasteful number, since it uses less digits than its factorization.

845412788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000 (or 4998 counting only the distinct ones).

The product of its digits is 573440, while the sum is 47.

The square root of 845412788 is about 29075.9830100377. The cubic root of 845412788 is about 945.5611153933.

The spelling of 845412788 in words is "eight hundred forty-five million, four hundred twelve thousand, seven hundred eighty-eight".