115225440 has 192 divisors, whose sum is σ = 401345280. Its totient is φ = 27555840.

The previous prime is 115225399. The next prime is 115225471. The reversal of 115225440 is 44522511.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 115225440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 733842 + ... + 733998.

It is an arithmetic number, because the mean of its divisors is an integer number (2090340).

Almost surely, 2^115225440 is an apocalyptic number.

115225440 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 115225440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200672640).

115225440 is an abundant number, since it is smaller than the sum of its proper divisors (286119840).

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

115225440 is a wasteful number, since it uses less digits than its factorization.

115225440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 115225440 is about 10734.3113426060. The cubic root of 115225440 is about 486.6119744214.

Adding to 115225440 its reverse (44522511), we get a palindrome (159747951).

The spelling of 115225440 in words is "one hundred fifteen million, two hundred twenty-five thousand, four hundred forty".