1256004304 has 10 divisors (see below), whose sum is σ = 2433508370. Its totient is φ = 628002144.

The previous prime is 1256004287. The next prime is 1256004307. The reversal of 1256004304 is 4034006521.

It can be written as a sum of positive squares in only one way, i.e., 731594304 + 524410000 = 27048^2 + 22900^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256004307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39250119 + ... + 39250150.

It is an arithmetic number, because the mean of its divisors is an integer number (243350837).

Almost surely, 2^1256004304 is an apocalyptic number.

It is an amenable number.

1256004304 is a deficient number, since it is larger than the sum of its proper divisors (1177504066).

1256004304 is an equidigital number, since it uses as much as digits as its factorization.

1256004304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78500277 (or 78500271 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1256004304 is about 35440.1510154796. The cubic root of 1256004304 is about 1078.9393748382.

The spelling of 1256004304 in words is "one billion, two hundred fifty-six million, four thousand, three hundred four".