285474628 has 6 divisors (see below), whose sum is σ = 499580606. Its totient is φ = 142737312.

The previous prime is 285474619. The next prime is 285474641. The reversal of 285474628 is 826474582.

It can be written as a sum of positive squares in only one way, i.e., 148303684 + 137170944 = 12178^2 + 11712^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35684325 + ... + 35684332.

Almost surely, 2^285474628 is an apocalyptic number.

It is an amenable number.

285474628 is a deficient number, since it is larger than the sum of its proper divisors (214105978).

285474628 is a wasteful number, since it uses less digits than its factorization.

285474628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71368661 (or 71368659 counting only the distinct ones).

The product of its digits is 860160, while the sum is 46.

The square root of 285474628 is about 16895.9944365521. The cubic root of 285474628 is about 658.4495500574.

Subtracting from 285474628 its sum of digits (46), we obtain a palindrome (285474582).

The spelling of 285474628 in words is "two hundred eighty-five million, four hundred seventy-four thousand, six hundred twenty-eight".