285204788 has 12 divisors (see below), whose sum is σ = 544481952. Its totient is φ = 129638520.

The previous prime is 285204779. The next prime is 285204797. The reversal of 285204788 is 887402582.

It is an interprime number because it is at equal distance from previous prime (285204779) and next prime (285204797).

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 6481927 = 285204788 / (2 + 8 + 5 + 2 + 0 + 4 + 7 + 8 + 8).

It is a congruent number.

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, 3240920 + ... + 3241007.

It is an arithmetic number, because the mean of its divisors is an integer number (45373496).

Almost surely, 2^285204788 is an apocalyptic number.

It is an amenable number.

285204788 is a deficient number, since it is larger than the sum of its proper divisors (259277164).

285204788 is a wasteful number, since it uses less digits than its factorization.

285204788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6481942 (or 6481940 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 44.

The square root of 285204788 is about 16888.0072240629. The cubic root of 285204788 is about 658.2420219383.

The spelling of 285204788 in words is "two hundred eighty-five million, two hundred four thousand, seven hundred eighty-eight".