285090245 has 8 divisors (see below), whose sum is σ = 373209120. Its totient is φ = 207338320.

The previous prime is 285090199. The next prime is 285090259. The reversal of 285090245 is 542090582.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 285090245 - 2⁸ = 285089989 is a prime.

It is a Curzon number.

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, 2591675 + ... + 2591784.

It is an arithmetic number, because the mean of its divisors is an integer number (46651140).

Almost surely, 2^285090245 is an apocalyptic number.

It is an amenable number.

285090245 is a deficient number, since it is larger than the sum of its proper divisors (88118875).

285090245 is a wasteful number, since it uses less digits than its factorization.

285090245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183475.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 285090245 is about 16884.6156308043. The cubic root of 285090245 is about 658.1538898137.

The spelling of 285090245 in words is "two hundred eighty-five million, ninety thousand, two hundred forty-five".