285969474 has 32 divisors (see below), whose sum is σ = 726272640. Its totient is φ = 81705456.

The previous prime is 285969473. The next prime is 285969487. The reversal of 285969474 is 474969582.

285969474 is a `hidden beast` number, since 2 + 8 + 596 + 9 + 47 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 285969474.

It is not an unprimeable number, because it can be changed into a prime (285969473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377889 + ... + 378644.

It is an arithmetic number, because the mean of its divisors is an integer number (22696020).

Almost surely, 2^285969474 is an apocalyptic number.

285969474 is an abundant number, since it is smaller than the sum of its proper divisors (440303166).

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

285969474 is a wasteful number, since it uses less digits than its factorization.

285969474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756551 (or 756545 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 285969474 is about 16910.6319810940. The cubic root of 285969474 is about 658.8297858803.

The spelling of 285969474 in words is "two hundred eighty-five million, nine hundred sixty-nine thousand, four hundred seventy-four".