1118770420 has 24 divisors (see below), whose sum is σ = 2355179400. Its totient is φ = 446410752.

The previous prime is 1118770409. The next prime is 1118770451. The reversal of 1118770420 is 240778111.

It can be written as a sum of positive squares in 4 ways, for example, as 35307364 + 1083463056 = 5942^2 + 32916^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60205 + ... + 76564.

It is an arithmetic number, because the mean of its divisors is an integer number (98132475).

Almost surely, 2^1118770420 is an apocalyptic number.

1118770420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1118770420 is an abundant number, since it is smaller than the sum of its proper divisors (1236408980).

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

1118770420 is a wasteful number, since it uses less digits than its factorization.

1118770420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137187 (or 137185 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 1118770420 is about 33448.0256517481. The cubic root of 1118770420 is about 1038.1186462785.

The spelling of 1118770420 in words is "one billion, one hundred eighteen million, seven hundred seventy thousand, four hundred twenty".