1118509572 has 48 divisors (see below), whose sum is σ = 2669248512. Its totient is φ = 364375200.

The previous prime is 1118509559. The next prime is 1118509589. The reversal of 1118509572 is 2759058111.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1118509572.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648303 + ... + 650025.

It is an arithmetic number, because the mean of its divisors is an integer number (55609344).

Almost surely, 2^1118509572 is an apocalyptic number.

1118509572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1118509572 is an abundant number, since it is smaller than the sum of its proper divisors (1550738940).

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

1118509572 is a wasteful number, since it uses less digits than its factorization.

1118509572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 39.

The square root of 1118509572 is about 33444.1261210396. The cubic root of 1118509572 is about 1038.0379588214.

The spelling of 1118509572 in words is "one billion, one hundred eighteen million, five hundred nine thousand, five hundred seventy-two".