284674690 has 16 divisors (see below), whose sum is σ = 542556792. Its totient is φ = 107171584.

The previous prime is 284674681. The next prime is 284674693. The reversal of 284674690 is 96476482.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 283349889 + 1324801 = 16833^2 + 1151^2 .

It is a super-2 number, since 2×284674690² = 162079358253192200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 284674690.

It is not an unprimeable number, because it can be changed into a prime (284674693) 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, 837109 + ... + 837448.

Almost surely, 2^284674690 is an apocalyptic number.

284674690 is a deficient number, since it is larger than the sum of its proper divisors (257882102).

284674690 is a wasteful number, since it uses less digits than its factorization.

284674690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674581.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 284674690 is about 16872.3054144951. The cubic root of 284674690 is about 657.8339535378.

The spelling of 284674690 in words is "two hundred eighty-four million, six hundred seventy-four thousand, six hundred ninety".