285838044 has 24 divisors (see below), whose sum is σ = 667873920. Its totient is φ = 95148144.

The previous prime is 285838031. The next prime is 285838087. The reversal of 285838044 is 440838582.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 285837987 and 285838005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7114 + ... + 24945.

It is an arithmetic number, because the mean of its divisors is an integer number (27828080).

Almost surely, 2^285838044 is an apocalyptic number.

It is an amenable number.

285838044 is an abundant number, since it is smaller than the sum of its proper divisors (382035876).

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

285838044 is a wasteful number, since it uses less digits than its factorization.

285838044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32809 (or 32807 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The square root of 285838044 is about 16906.7455176920. The cubic root of 285838044 is about 658.7288388965.

The spelling of 285838044 in words is "two hundred eighty-five million, eight hundred thirty-eight thousand, forty-four".