1259399028 has 48 divisors (see below), whose sum is σ = 3014000640. Its totient is φ = 409104864.

The previous prime is 1259399003. The next prime is 1259399051. The reversal of 1259399028 is 8209939521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130125 + ... + 139467.

It is an arithmetic number, because the mean of its divisors is an integer number (62791680).

Almost surely, 2^1259399028 is an apocalyptic number.

It is an amenable number.

1259399028 is an abundant number, since it is smaller than the sum of its proper divisors (1754601612).

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

1259399028 is a wasteful number, since it uses less digits than its factorization.

1259399028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9636 (or 9634 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 1259399028 is about 35488.0124549122. The cubic root of 1259399028 is about 1079.9105515768.

The spelling of 1259399028 in words is "one billion, two hundred fifty-nine million, three hundred ninety-nine thousand, twenty-eight".