284974378 has 16 divisors (see below), whose sum is σ = 462328776. Its totient is φ = 130959360.

The previous prime is 284974363. The next prime is 284974379. The reversal of 284974378 is 873479482.

284974378 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 97476129 + 187498249 = 9873^2 + 13693^2 .

It is a super-2 number, since 2×284974378² = 162420792232973768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (284974379) 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, 17463 + ... + 29578.

Almost surely, 2^284974378 is an apocalyptic number.

284974378 is a deficient number, since it is larger than the sum of its proper divisors (177354398).

284974378 is a wasteful number, since it uses less digits than its factorization.

284974378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47289.

The product of its digits is 2709504, while the sum is 52.

The square root of 284974378 is about 16881.1841409304. The cubic root of 284974378 is about 658.0647149513.

The spelling of 284974378 in words is "two hundred eighty-four million, nine hundred seventy-four thousand, three hundred seventy-eight".