115445234340040 has 128 divisors (see below), whose sum is σ = 290916012309120. Its totient is φ = 40873594777600.

The previous prime is 115445234340031. The next prime is 115445234340043. The reversal of 115445234340040 is 40043432544511.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 115445234339975 and 115445234340002.

It is not an unprimeable number, because it can be changed into a prime (115445234340043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15840049 + ... + 21949888.

It is an arithmetic number, because the mean of its divisors is an integer number (2272781346165).

Almost surely, 2^{115445234340040} is an apocalyptic number.

115445234340040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115445234340040 is an abundant number, since it is smaller than the sum of its proper divisors (175470777969080).

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

115445234340040 is a wasteful number, since it uses less digits than its factorization.

115445234340040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37790143 (or 37790139 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 115445234340040 its reverse (40043432544511), we get a palindrome (155488666884551).

The spelling of 115445234340040 in words is "one hundred fifteen trillion, four hundred forty-five billion, two hundred thirty-four million, three hundred forty thousand, forty".