1118505940 has 12 divisors (see below), whose sum is σ = 2348862516. Its totient is φ = 447402368.

The previous prime is 1118505931. The next prime is 1118505961. The reversal of 1118505940 is 495058111.

It can be written as a sum of positive squares in 2 ways, for example, as 571975056 + 546530884 = 23916^2 + 23378^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1118505896 and 1118505905.

It is a congruent number.

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, 27962629 + ... + 27962668.

It is an arithmetic number, because the mean of its divisors is an integer number (195738543).

Almost surely, 2^1118505940 is an apocalyptic number.

1118505940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1118505940 is an abundant number, since it is smaller than the sum of its proper divisors (1230356576).

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

1118505940 is a wasteful number, since it uses less digits than its factorization.

1118505940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55925306 (or 55925304 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 1118505940 is about 33444.0718214753. The cubic root of 1118505940 is about 1038.0368352554.

The spelling of 1118505940 in words is "one billion, one hundred eighteen million, five hundred five thousand, nine hundred forty".