115403328 has 168 divisors, whose sum is σ = 357566976. Its totient is φ = 35481600.

The previous prime is 115403317. The next prime is 115403339. The reversal of 115403328 is 823304511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115403317) and next prime (115403339).

It is a super-2 number, since 2×115403328² = 26635856226951168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 410548 + ... + 410828.

Almost surely, 2^115403328 is an apocalyptic number.

115403328 is a gapful number since it is divisible by the number (18) 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 115403328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178783488).

115403328 is an abundant number, since it is smaller than the sum of its proper divisors (242163648).

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

115403328 is a wasteful number, since it uses less digits than its factorization.

115403328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 115403328 is about 10742.5941001231. The cubic root of 115403328 is about 486.8622603632.

Adding to 115403328 its reverse (823304511), we get a palindrome (938707839).

The spelling of 115403328 in words is "one hundred fifteen million, four hundred three thousand, three hundred twenty-eight".