285674000 has 40 divisors (see below), whose sum is σ = 690764568. Its totient is φ = 114268800.

The previous prime is 285673981. The next prime is 285674009. The reversal of 285674000 is 476582.

It can be written as a sum of positive squares in 4 ways, for example, as 30824704 + 254849296 = 5552^2 + 15964^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (285674009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69419 + ... + 73418.

Almost surely, 2^285674000 is an apocalyptic number.

285674000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285674000 is an abundant number, since it is smaller than the sum of its proper divisors (405090568).

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

285674000 is a wasteful number, since it uses less digits than its factorization.

285674000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142860 (or 142844 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 285674000 is about 16901.8933850619. The cubic root of 285674000 is about 658.6027987668.

The spelling of 285674000 in words is "two hundred eighty-five million, six hundred seventy-four thousand".