2381528730 has 32 divisors (see below), whose sum is σ = 6532193664. Its totient is φ = 544349376.

The previous prime is 2381528729. The next prime is 2381528731. The reversal of 2381528730 is 378251832.

It is an interprime number because it is at equal distance from previous prime (2381528729) and next prime (2381528731).

It is not an unprimeable number, because it can be changed into a prime (2381528731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5670097 + ... + 5670516.

It is an arithmetic number, because the mean of its divisors is an integer number (204131052).

Almost surely, 2^2381528730 is an apocalyptic number.

2381528730 is an abundant number, since it is smaller than the sum of its proper divisors (4150664934).

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

2381528730 is a wasteful number, since it uses less digits than its factorization.

2381528730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11340630.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 2381528730 is about 48800.9091103844. The cubic root of 2381528730 is about 1335.4222513709.

The spelling of 2381528730 in words is "two billion, three hundred eighty-one million, five hundred twenty-eight thousand, seven hundred thirty".