1298861862 has 8 divisors (see below), whose sum is σ = 2597723736. Its totient is φ = 432953952.

The previous prime is 1298861849. The next prime is 1298861867. The reversal of 1298861862 is 2681688921.

1298861862 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.

1298861862 is an admirable number.

It is a super-4 number, since 4×1298861862⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298861867) 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, 108238483 + ... + 108238494.

It is an arithmetic number, because the mean of its divisors is an integer number (324715467).

Almost surely, 2^1298861862 is an apocalyptic number.

1298861862 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.

1298861862 is a wasteful number, since it uses less digits than its factorization.

1298861862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216476982.

The product of its digits is 663552, while the sum is 51.

The square root of 1298861862 is about 36039.7261643315. The cubic root of 1298861862 is about 1091.0742886026.

The spelling of 1298861862 in words is "one billion, two hundred ninety-eight million, eight hundred sixty-one thousand, eight hundred sixty-two".