2981398992 has 80 divisors (see below), whose sum is σ = 9048462528. Its totient is φ = 833955840.

The previous prime is 2981398951. The next prime is 2981398997. The reversal of 2981398992 is 2998931892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981398997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210313 + ... + 224040.

Almost surely, 2^2981398992 is an apocalyptic number.

2981398992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2981398992 is an abundant number, since it is smaller than the sum of its proper divisors (6067063536).

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

2981398992 is a wasteful number, since it uses less digits than its factorization.

2981398992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434388 (or 434382 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 60.

The square root of 2981398992 is about 54602.1885275673. The cubic root of 2981398992 is about 1439.2625776783.

The spelling of 2981398992 in words is "two billion, nine hundred eighty-one million, three hundred ninety-eight thousand, nine hundred ninety-two".