115007440 has 40 divisors (see below), whose sum is σ = 267873480. Its totient is φ = 45920256.

The previous prime is 115007411. The next prime is 115007441. The reversal of 115007440 is 44700511.

It can be written as a sum of positive squares in 4 ways, for example, as 30514576 + 84492864 = 5524^2 + 9192^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×115007440² = 26453422510707200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115007441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63832 + ... + 65608.

It is an arithmetic number, because the mean of its divisors is an integer number (6696837).

Almost surely, 2^115007440 is an apocalyptic number.

115007440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115007440 is an abundant number, since it is smaller than the sum of its proper divisors (152866040).

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

115007440 is a wasteful number, since it uses less digits than its factorization.

115007440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2599 (or 2593 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 115007440 is about 10724.1521809419. The cubic root of 115007440 is about 486.3048999280.

Adding to 115007440 its reverse (44700511), we get a palindrome (159707951).

The spelling of 115007440 in words is "one hundred fifteen million, seven thousand, four hundred forty".