1001998412 has 12 divisors (see below), whose sum is σ = 1754257680. Its totient is φ = 500781936.

The previous prime is 1001998391. The next prime is 1001998483. The reversal of 1001998412 is 2148991001.

1001998412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43712 + ... + 62567.

It is an arithmetic number, because the mean of its divisors is an integer number (146188140).

Almost surely, 2^1001998412 is an apocalyptic number.

It is an amenable number.

1001998412 is a deficient number, since it is larger than the sum of its proper divisors (752259268).

1001998412 is a wasteful number, since it uses less digits than its factorization.

1001998412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108640 (or 108638 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 1001998412 is about 31654.3584992652. The cubic root of 1001998412 is about 1000.6656940864.

The spelling of 1001998412 in words is "one billion, one million, nine hundred ninety-eight thousand, four hundred twelve".