916040 has 16 divisors (see below), whose sum is σ = 2061180. Its totient is φ = 366400.

The previous prime is 916033. The next prime is 916049. The reversal of 916040 is 40619.

It can be written as a sum of positive squares in 2 ways, for example, as 857476 + 58564 = 926^2 + 242^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (916049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11411 + ... + 11490.

2⁹¹⁶⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

916040 is an abundant number, since it is smaller than the sum of its proper divisors (1145140).

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

916040 is a wasteful number, since it uses less digits than its factorization.

916040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22912 (or 22908 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 916040 is about 957.0997858113. The cubic root of 916040 is about 97.1191365712.

Adding to 916040 its reverse (40619), we get a palindrome (956659).

The spelling of 916040 in words is "nine hundred sixteen thousand, forty".