1298993874 has 16 divisors (see below), whose sum is σ = 2607236640. Its totient is φ = 431456480.

The previous prime is 1298993863. The next prime is 1298993879. The reversal of 1298993874 is 4783998921.

It is not an unprimeable number, because it can be changed into a prime (1298993879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383544 + ... + 386915.

It is an arithmetic number, because the mean of its divisors is an integer number (162952290).

Almost surely, 2^1298993874 is an apocalyptic number.

1298993874 is an abundant number, since it is smaller than the sum of its proper divisors (1308242766).

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

1298993874 is a wasteful number, since it uses less digits than its factorization.

1298993874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770745.

The product of its digits is 7838208, while the sum is 60.

The square root of 1298993874 is about 36041.5575967521. The cubic root of 1298993874 is about 1091.1112517377. Note that the first 3 decimals are identical.

The spelling of 1298993874 in words is "one billion, two hundred ninety-eight million, nine hundred ninety-three thousand, eight hundred seventy-four".