903940 has 12 divisors (see below), whose sum is σ = 1898316. Its totient is φ = 361568.

The previous prime is 903919. The next prime is 903949. The reversal of 903940 is 49309.

It can be written as a sum of positive squares in 2 ways, for example, as 627264 + 276676 = 792^2 + 526^2 .

It is not an unprimeable number, because it can be changed into a prime (903949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22579 + ... + 22618.

It is an arithmetic number, because the mean of its divisors is an integer number (158193).

2⁹⁰³⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

903940 is an abundant number, since it is smaller than the sum of its proper divisors (994376).

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

903940 is a wasteful number, since it uses less digits than its factorization.

903940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45206 (or 45204 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 903940 is about 950.7575926597. The cubic root of 903940 is about 96.6896232966.

The spelling of 903940 in words is "nine hundred three thousand, nine hundred forty".