115204440 has 64 divisors (see below), whose sum is σ = 372204000. Its totient is φ = 28357632.

The previous prime is 115204433. The next prime is 115204471. The reversal of 115204440 is 44402511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35365 + ... + 38484.

Almost surely, 2^115204440 is an apocalyptic number.

115204440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115204440 is an abundant number, since it is smaller than the sum of its proper divisors (256999560).

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

115204440 is a wasteful number, since it uses less digits than its factorization.

115204440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73876 (or 73872 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 115204440 is about 10733.3331262940. Note that the first 3 decimals coincide. The cubic root of 115204440 is about 486.5824107176.

Adding to 115204440 its reverse (44402511), we get a palindrome (159606951).

The spelling of 115204440 in words is "one hundred fifteen million, two hundred four thousand, four hundred forty".