1004243478 has 32 divisors (see below), whose sum is σ = 2309174784. Its totient is φ = 285206592.

The previous prime is 1004243473. The next prime is 1004243479. The reversal of 1004243478 is 8743424001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004243473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64575 + ... + 78602.

It is an arithmetic number, because the mean of its divisors is an integer number (72161712).

Almost surely, 2^1004243478 is an apocalyptic number.

1004243478 is an abundant number, since it is smaller than the sum of its proper divisors (1304931306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1004243478 is a wasteful number, since it uses less digits than its factorization.

1004243478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143356.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 1004243478 is about 31689.8008513780. The cubic root of 1004243478 is about 1001.4124965807.

Adding to 1004243478 its reverse (8743424001), we get a palindrome (9747667479).

The spelling of 1004243478 in words is "one billion, four million, two hundred forty-three thousand, four hundred seventy-eight".