1030731228 has 36 divisors (see below), whose sum is σ = 2742590760. Its totient is φ = 325493856.

The previous prime is 1030731203. The next prime is 1030731241. The reversal of 1030731228 is 8221370301.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752775 + ... + 754142.

Almost surely, 2^1030731228 is an apocalyptic number.

1030731228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1030731228 is an abundant number, since it is smaller than the sum of its proper divisors (1711859532).

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

1030731228 is a wasteful number, since it uses less digits than its factorization.

1030731228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506946 (or 1506941 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1030731228 is about 32105.0031615012. The cubic root of 1030731228 is about 1010.1405640394.

The spelling of 1030731228 in words is "one billion, thirty million, seven hundred thirty-one thousand, two hundred twenty-eight".