284378041 has 4 divisors (see below), whose sum is σ = 292063972. Its totient is φ = 276692112.

The previous prime is 284378033. The next prime is 284378047. The reversal of 284378041 is 140873482.

It is the 6885-th star number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 104040000 + 180338041 = 10200^2 + 13429^2 .

It is a cyclic number.

It is not a de Polignac number, because 284378041 - 2³ = 284378033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 7685893 = 284378041 / (2 + 8 + 4 + 3 + 7 + 8 + 0 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284378047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3842910 + ... + 3842983.

It is an arithmetic number, because the mean of its divisors is an integer number (73015993).

Almost surely, 2^284378041 is an apocalyptic number.

It is an amenable number.

284378041 is a deficient number, since it is larger than the sum of its proper divisors (7685931).

284378041 is an equidigital number, since it uses as much as digits as its factorization.

284378041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7685930.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 284378041 is about 16863.5121193659. The cubic root of 284378041 is about 657.6053726167.

The spelling of 284378041 in words is "two hundred eighty-four million, three hundred seventy-eight thousand, forty-one".