916240 has 40 divisors (see below), whose sum is σ = 2296728. Its totient is φ = 337920.

The previous prime is 916219. The next prime is 916259. The reversal of 916240 is 42619.

It can be written as a sum of positive squares in 4 ways, for example, as 2304 + 913936 = 48^2 + 956^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 600 + ... + 1480.

2⁹¹⁶²⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 916240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1148364).

916240 is an abundant number, since it is smaller than the sum of its proper divisors (1380488).

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

916240 is a wasteful number, since it uses less digits than its factorization.

916240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 916240 is about 957.2042624226. The cubic root of 916240 is about 97.1262040987.

Adding to 916240 its reverse (42619), we get a palindrome (958859).

It can be divided in two parts, 916 and 240, that added together give a square (1156 = 34²).

The spelling of 916240 in words is "nine hundred sixteen thousand, two hundred forty".