2731428630 has 96 divisors (see below), whose sum is σ = 8130290688. Its totient is φ = 623246400.

The previous prime is 2731428629. The next prime is 2731428647. The reversal of 2731428630 is 368241372.

It is a happy number.

2731428630 is a `hidden beast` number, since 2 + 7 + 3 + 14 + 2 + 8 + 630 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 394095 + ... + 400965.

It is an arithmetic number, because the mean of its divisors is an integer number (84690528).

Almost surely, 2^2731428630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2731428630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4065145344).

2731428630 is an abundant number, since it is smaller than the sum of its proper divisors (5398862058).

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

2731428630 is a wasteful number, since it uses less digits than its factorization.

2731428630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7522 (or 7519 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 2731428630 is about 52263.0713793210. The cubic root of 2731428630 is about 1397.8587385741.

The spelling of 2731428630 in words is "two billion, seven hundred thirty-one million, four hundred twenty-eight thousand, six hundred thirty".