855444432 has 20 divisors (see below), whose sum is σ = 2209898240. Its totient is φ = 285148128.

The previous prime is 855444431. The next prime is 855444449. The reversal of 855444432 is 234444558.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855444431) 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, 8910832 + ... + 8910927.

It is an arithmetic number, because the mean of its divisors is an integer number (110494912).

Almost surely, 2^855444432 is an apocalyptic number.

It is an amenable number.

855444432 is an abundant number, since it is smaller than the sum of its proper divisors (1354453808).

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

855444432 is a wasteful number, since it uses less digits than its factorization.

855444432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17821770 (or 17821764 counting only the distinct ones).

The product of its digits is 307200, while the sum is 39.

The square root of 855444432 is about 29247.9816739549. The cubic root of 855444432 is about 949.2864196314.

The spelling of 855444432 in words is "eight hundred fifty-five million, four hundred forty-four thousand, four hundred thirty-two".