1259001798 has 8 divisors (see below), whose sum is σ = 2518003608. Its totient is φ = 419667264.

The previous prime is 1259001797. The next prime is 1259001839. The reversal of 1259001798 is 8971009521.

1259001798 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

1259001798 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1259001797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104916811 + ... + 104916822.

It is an arithmetic number, because the mean of its divisors is an integer number (314750451).

Almost surely, 2^1259001798 is an apocalyptic number.

1259001798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1259001798 is a wasteful number, since it uses less digits than its factorization.

1259001798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209833638.

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 1259001798 is about 35482.4153349233. The cubic root of 1259001798 is about 1079.7970005978.

The spelling of 1259001798 in words is "one billion, two hundred fifty-nine million, one thousand, seven hundred ninety-eight".