1255404304 has 120 divisors (see below), whose sum is σ = 3268639008. Its totient is φ = 460293120.

The previous prime is 1255404277. The next prime is 1255404313. The reversal of 1255404304 is 4034045521.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142327 + ... + 150889.

Almost surely, 2^1255404304 is an apocalyptic number.

1255404304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255404304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1634319504).

1255404304 is an abundant number, since it is smaller than the sum of its proper divisors (2013234704).

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

1255404304 is a wasteful number, since it uses less digits than its factorization.

1255404304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8613 (or 8600 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1255404304 is about 35431.6850290810. The cubic root of 1255404304 is about 1078.7675424293.

Adding to 1255404304 its reverse (4034045521), we get a palindrome (5289449825).

The spelling of 1255404304 in words is "one billion, two hundred fifty-five million, four hundred four thousand, three hundred four".