1115253040 has 160 divisors (see below), whose sum is σ = 3023806464. Its totient is φ = 378040320.

The previous prime is 1115252969. The next prime is 1115253059. The reversal of 1115253040 is 403525111.

1115253040 = T₄₉₉ + T₅₀₀ + ... + T₁₈₉₅.

It is a happy number.

It is a super-3 number, since 3×1115253040³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1899627 + ... + 1900213.

Almost surely, 2^1115253040 is an apocalyptic number.

1115253040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115253040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1511903232).

1115253040 is an abundant number, since it is smaller than the sum of its proper divisors (1908553424).

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

1115253040 is a wasteful number, since it uses less digits than its factorization.

1115253040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1115253040 is about 33395.4044742686. The cubic root of 1115253040 is about 1037.0295663722.

Adding to 1115253040 its reverse (403525111), we get a palindrome (1518778151).

The spelling of 1115253040 in words is "one billion, one hundred fifteen million, two hundred fifty-three thousand, forty".