285581452 has 12 divisors (see below), whose sum is σ = 538211296. Its totient is φ = 131806800.

The previous prime is 285581431. The next prime is 285581489. The reversal of 285581452 is 254185582.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 2745924 + ... + 2746027.

Almost surely, 2^285581452 is an apocalyptic number.

It is an amenable number.

285581452 is a deficient number, since it is larger than the sum of its proper divisors (252629844).

285581452 is a wasteful number, since it uses less digits than its factorization.

285581452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5491968 (or 5491966 counting only the distinct ones).

The product of its digits is 128000, while the sum is 40.

The square root of 285581452 is about 16899.1553635086. The cubic root of 285581452 is about 658.5316699566.

The spelling of 285581452 in words is "two hundred eighty-five million, five hundred eighty-one thousand, four hundred fifty-two".