903231216 has 160 divisors (see below), whose sum is σ = 2840443200. Its totient is φ = 273530880.

The previous prime is 903231193. The next prime is 903231223. The reversal of 903231216 is 612132309.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 903231216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210856 + ... + 215096.

It is an arithmetic number, because the mean of its divisors is an integer number (17752770).

Almost surely, 2^903231216 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 903231216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1420221600).

903231216 is an abundant number, since it is smaller than the sum of its proper divisors (1937211984).

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

903231216 is a wasteful number, since it uses less digits than its factorization.

903231216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304 (or 4292 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 903231216 is about 30053.8053497390. The cubic root of 903231216 is about 966.6434507834.

The spelling of 903231216 in words is "nine hundred three million, two hundred thirty-one thousand, two hundred sixteen".