2142730730 has 64 divisors (see below), whose sum is σ = 4501198080. Its totient is φ = 719207424.

The previous prime is 2142730729. The next prime is 2142730763. The reversal of 2142730730 is 370372412.

It is a junction number, because it is equal to n+sod(n) for n = 2142730693 and 2142730702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1143074 + ... + 1144946.

It is an arithmetic number, because the mean of its divisors is an integer number (70331220).

Almost surely, 2^2142730730 is an apocalyptic number.

2142730730 is an abundant number, since it is smaller than the sum of its proper divisors (2358467350).

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

2142730730 is a wasteful number, since it uses less digits than its factorization.

2142730730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 2142730730 is about 46289.6395535761. The cubic root of 2142730730 is about 1289.2066371464.

The spelling of 2142730730 in words is "two billion, one hundred forty-two million, seven hundred thirty thousand, seven hundred thirty".