1115228544 has 128 divisors (see below), whose sum is σ = 3101885280. Its totient is φ = 354631680.

The previous prime is 1115228501. The next prime is 1115228557. The reversal of 1115228544 is 4458225111.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-3 number, since 3×1115228544³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 752284 + ... + 753764.

Almost surely, 2^1115228544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115228544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1550942640).

1115228544 is an abundant number, since it is smaller than the sum of its proper divisors (1986656736).

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

1115228544 is a wasteful number, since it uses less digits than its factorization.

1115228544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588 (or 1576 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 1115228544 is about 33395.0377152055. The cubic root of 1115228544 is about 1037.0219736970.

The spelling of 1115228544 in words is "one billion, one hundred fifteen million, two hundred twenty-eight thousand, five hundred forty-four".