115503438 has 16 divisors (see below), whose sum is σ = 231129216. Its totient is φ = 38480760.

The previous prime is 115503371. The next prime is 115503449. The reversal of 115503438 is 834305511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11173 + ... + 18863.

It is an arithmetic number, because the mean of its divisors is an integer number (14445576).

Almost surely, 2^115503438 is an apocalyptic number.

115503438 is an abundant number, since it is smaller than the sum of its proper divisors (115625778).

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

115503438 is a wasteful number, since it uses less digits than its factorization.

115503438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10199.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 115503438 is about 10747.2525791478. The cubic root of 115503438 is about 487.0030006547.

Adding to 115503438 its reverse (834305511), we get a palindrome (949808949).

The spelling of 115503438 in words is "one hundred fifteen million, five hundred three thousand, four hundred thirty-eight".