1023256478 has 8 divisors (see below), whose sum is σ = 1563844968. Its totient is φ = 501974824.

The previous prime is 1023256459. The next prime is 1023256489. The reversal of 1023256478 is 8746523201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4826576 + ... + 4826787.

It is an arithmetic number, because the mean of its divisors is an integer number (195480621).

Almost surely, 2^1023256478 is an apocalyptic number.

1023256478 is a deficient number, since it is larger than the sum of its proper divisors (540588490).

1023256478 is an equidigital number, since it uses as much as digits as its factorization.

1023256478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9653418.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 1023256478 is about 31988.3803591242. The cubic root of 1023256478 is about 1007.6928279782.

Adding to 1023256478 its reverse (8746523201), we get a palindrome (9769779679).

The spelling of 1023256478 in words is "one billion, twenty-three million, two hundred fifty-six thousand, four hundred seventy-eight".