731042228 has 24 divisors (see below), whose sum is σ = 1548090432. Its totient is φ = 294873984.

The previous prime is 731042227. The next prime is 731042231. The reversal of 731042228 is 822240137.

731042228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 731042228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731042227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 767426 + ... + 768377.

It is an arithmetic number, because the mean of its divisors is an integer number (64503768).

Almost surely, 2^731042228 is an apocalyptic number.

It is an amenable number.

731042228 is an abundant number, since it is smaller than the sum of its proper divisors (817048204).

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

731042228 is a wasteful number, since it uses less digits than its factorization.

731042228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535831 (or 1535829 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 731042228 is about 27037.7925874136. The cubic root of 731042228 is about 900.8396394745.

The spelling of 731042228 in words is "seven hundred thirty-one million, forty-two thousand, two hundred twenty-eight".