1298068990 has 16 divisors (see below), whose sum is σ = 2337903648. Its totient is φ = 518921056.

The previous prime is 1298068943. The next prime is 1298069011. The reversal of 1298068990 is 998608921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20122 + ... + 54781.

It is an arithmetic number, because the mean of its divisors is an integer number (146118978).

Almost surely, 2^1298068990 is an apocalyptic number.

1298068990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1298068990 is a deficient number, since it is larger than the sum of its proper divisors (1039834658).

1298068990 is a wasteful number, since it uses less digits than its factorization.

1298068990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76643.

The product of its (nonzero) digits is 559872, while the sum is 52.

The square root of 1298068990 is about 36028.7245125331. The cubic root of 1298068990 is about 1090.8522330825.

The spelling of 1298068990 in words is "one billion, two hundred ninety-eight million, sixty-eight thousand, nine hundred ninety".