115920404 has 6 divisors (see below), whose sum is σ = 202860714. Its totient is φ = 57960200.

The previous prime is 115920403. The next prime is 115920419. The reversal of 115920404 is 404029511.

It can be written as a sum of positive squares in only one way, i.e., 75724804 + 40195600 = 8702^2 + 6340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115920403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14490047 + ... + 14490054.

It is an arithmetic number, because the mean of its divisors is an integer number (33810119).

Almost surely, 2^115920404 is an apocalyptic number.

It is an amenable number.

115920404 is a deficient number, since it is larger than the sum of its proper divisors (86940310).

115920404 is a wasteful number, since it uses less digits than its factorization.

115920404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28980105 (or 28980103 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 115920404 is about 10766.6338286393. The cubic root of 115920404 is about 487.5883218454.

Adding to 115920404 its reverse (404029511), we get a palindrome (519949915).

The spelling of 115920404 in words is "one hundred fifteen million, nine hundred twenty thousand, four hundred four".