1115424440 has 32 divisors (see below), whose sum is σ = 2702760480. Its totient is φ = 411848832.

The previous prime is 1115424439. The next prime is 1115424449. The reversal of 1115424440 is 444245111.

It is a super-3 number, since 3×1115424440³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115424449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1072004 + ... + 1073043.

It is an arithmetic number, because the mean of its divisors is an integer number (84461265).

Almost surely, 2^1115424440 is an apocalyptic number.

1115424440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115424440 is an abundant number, since it is smaller than the sum of its proper divisors (1587336040).

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

1115424440 is a wasteful number, since it uses less digits than its factorization.

1115424440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145071 (or 2145067 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 1115424440 is about 33397.9705970288. The cubic root of 1115424440 is about 1037.0826896714.

Adding to 1115424440 its reverse (444245111), we get a palindrome (1559669551).

The spelling of 1115424440 in words is "one billion, one hundred fifteen million, four hundred twenty-four thousand, four hundred forty".