115434540 has 72 divisors (see below), whose sum is σ = 377093808. Its totient is φ = 28414080.

The previous prime is 115434533. The next prime is 115434541. The reversal of 115434540 is 45434511.

It is a happy number.

115434540 is a `hidden beast` number, since 115 + 4 + 3 + 4 + 540 = 666.

It is not an unprimeable number, because it can be changed into a prime (115434541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22326 + ... + 27005.

It is an arithmetic number, because the mean of its divisors is an integer number (5237414).

Almost surely, 2^115434540 is an apocalyptic number.

115434540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115434540 is an abundant number, since it is smaller than the sum of its proper divisors (261659268).

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

115434540 is a wasteful number, since it uses less digits than its factorization.

115434540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49359 (or 49354 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 115434540 is about 10744.0467236512. The cubic root of 115434540 is about 486.9061486847.

The spelling of 115434540 in words is "one hundred fifteen million, four hundred thirty-four thousand, five hundred forty".