909140 has 24 divisors (see below), whose sum is σ = 1929312. Its totient is φ = 359840.

The previous prime is 909133. The next prime is 909151. The reversal of 909140 is 41909.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 909140.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2447 + ... + 2793.

It is an arithmetic number, because the mean of its divisors is an integer number (80388).

2⁹⁰⁹¹⁴⁰ is an apocalyptic number.

It is an amenable number.

909140 is an abundant number, since it is smaller than the sum of its proper divisors (1020172).

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

909140 is a wasteful number, since it uses less digits than its factorization.

909140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 909140 is about 953.4883323880. The cubic root of 909140 is about 96.8746742965.

It can be divided in two parts, 909 and 140, that multiplied together give a triangular number (127260 = T₅₀₄).

The spelling of 909140 in words is "nine hundred nine thousand, one hundred forty".