1118913492 has 24 divisors (see below), whose sum is σ = 2671515616. Its totient is φ = 364297248.

The previous prime is 1118913491. The next prime is 1118913511. The reversal of 1118913492 is 2943198111.

It is a self number, because there is not a number n which added to its sum of digits gives 1118913492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118913491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1083703 + ... + 1084734.

Almost surely, 2^1118913492 is an apocalyptic number.

1118913492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1118913492 is an abundant number, since it is smaller than the sum of its proper divisors (1552602124).

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

1118913492 is a wasteful number, since it uses less digits than its factorization.

1118913492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168487 (or 2168485 counting only the distinct ones).

The product of its digits is 15552, while the sum is 39.

The square root of 1118913492 is about 33450.1643045292. The cubic root of 1118913492 is about 1038.1628970552.

The spelling of 1118913492 in words is "one billion, one hundred eighteen million, nine hundred thirteen thousand, four hundred ninety-two".