1115872572 has 24 divisors (see below), whose sum is σ = 2619680896. Its totient is φ = 369674928.

The previous prime is 1115872561. The next prime is 1115872579. The reversal of 1115872572 is 2752785111.

It is a self number, because there is not a number n which added to its sum of digits gives 1115872572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115872579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283288 + ... + 287199.

Almost surely, 2^1115872572 is an apocalyptic number.

1115872572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1115872572 is an abundant number, since it is smaller than the sum of its proper divisors (1503808324).

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

1115872572 is a wasteful number, since it uses less digits than its factorization.

1115872572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570657 (or 570655 counting only the distinct ones).

The product of its digits is 39200, while the sum is 39.

The square root of 1115872572 is about 33404.6788938316. The cubic root of 1115872572 is about 1037.2215569037.

The spelling of 1115872572 in words is "one billion, one hundred fifteen million, eight hundred seventy-two thousand, five hundred seventy-two".