284400674 has 4 divisors (see below), whose sum is σ = 426601014. Its totient is φ = 142200336.

The previous prime is 284400673. The next prime is 284400689. The reversal of 284400674 is 476004482.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 283686649 + 714025 = 16843^2 + 845^2 .

It is not an unprimeable number, because it can be changed into a prime (284400673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71100167 + ... + 71100170.

Almost surely, 2^284400674 is an apocalyptic number.

284400674 is a deficient number, since it is larger than the sum of its proper divisors (142200340).

284400674 is a wasteful number, since it uses less digits than its factorization.

284400674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142200339.

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 284400674 is about 16864.1831702576. The cubic root of 284400674 is about 657.6228179248.

The spelling of 284400674 in words is "two hundred eighty-four million, four hundred thousand, six hundred seventy-four".