1298299628 has 6 divisors (see below), whose sum is σ = 2272024356. Its totient is φ = 649149812.

The previous prime is 1298299627. The next prime is 1298299633. The reversal of 1298299628 is 8269928921.

It is not an unprimeable number, because it can be changed into a prime (1298299627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162287450 + ... + 162287457.

It is an arithmetic number, because the mean of its divisors is an integer number (378670726).

Almost surely, 2^1298299628 is an apocalyptic number.

It is an amenable number.

1298299628 is a deficient number, since it is larger than the sum of its proper divisors (973724728).

1298299628 is a wasteful number, since it uses less digits than its factorization.

1298299628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324574911 (or 324574909 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 56.

The square root of 1298299628 is about 36031.9251220359. The cubic root of 1298299628 is about 1090.9168359863.

The spelling of 1298299628 in words is "one billion, two hundred ninety-eight million, two hundred ninety-nine thousand, six hundred twenty-eight".