915435940 has 12 divisors (see below), whose sum is σ = 1922415516. Its totient is φ = 366174368.

The previous prime is 915435931. The next prime is 915435947. The reversal of 915435940 is 49534519.

It can be written as a sum of positive squares in 2 ways, for example, as 326597184 + 588838756 = 18072^2 + 24266^2 .

It is a junction number, because it is equal to n+sod(n) for n = 915435893 and 915435902.

It is not an unprimeable number, because it can be changed into a prime (915435947) 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 in 3 ways as a sum of consecutive naturals, for example, 22885879 + ... + 22885918.

It is an arithmetic number, because the mean of its divisors is an integer number (160201293).

Almost surely, 2^915435940 is an apocalyptic number.

It is an amenable number.

915435940 is an abundant number, since it is smaller than the sum of its proper divisors (1006979576).

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

915435940 is a wasteful number, since it uses less digits than its factorization.

915435940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45771806 (or 45771804 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 915435940 is about 30256.1719323513. The cubic root of 915435940 is about 970.9778427009.

The spelling of 915435940 in words is "nine hundred fifteen million, four hundred thirty-five thousand, nine hundred forty".