285999044 has 12 divisors (see below), whose sum is σ = 517757100. Its totient is φ = 138068448.

The previous prime is 285999031. The next prime is 285999059. The reversal of 285999044 is 440999582.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 192876544 + 93122500 = 13888^2 + 9650^2 .

It is a junction number, because it is equal to n+sod(n) for n = 285998983 and 285999001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1232639 + ... + 1232870.

It is an arithmetic number, because the mean of its divisors is an integer number (43146425).

Almost surely, 2^285999044 is an apocalyptic number.

It is an amenable number.

285999044 is a deficient number, since it is larger than the sum of its proper divisors (231758056).

285999044 is a wasteful number, since it uses less digits than its factorization.

285999044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465542 (or 2465540 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 285999044 is about 16911.5062605316. The cubic root of 285999044 is about 658.8524933451.

The spelling of 285999044 in words is "two hundred eighty-five million, nine hundred ninety-nine thousand, forty-four".