285072236 has 6 divisors (see below), whose sum is σ = 498876420. Its totient is φ = 142536116.

The previous prime is 285072209. The next prime is 285072239. The reversal of 285072236 is 632270582.

It is a junction number, because it is equal to n+sod(n) for n = 285072196 and 285072205.

It is not an unprimeable number, because it can be changed into a prime (285072239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35634026 + ... + 35634033.

It is an arithmetic number, because the mean of its divisors is an integer number (83146070).

Almost surely, 2^285072236 is an apocalyptic number.

It is an amenable number.

285072236 is a deficient number, since it is larger than the sum of its proper divisors (213804184).

285072236 is a wasteful number, since it uses less digits than its factorization.

285072236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71268063 (or 71268061 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 285072236 is about 16884.0823262622. The cubic root of 285072236 is about 658.1400311109.

The spelling of 285072236 in words is "two hundred eighty-five million, seventy-two thousand, two hundred thirty-six".