2179530042 has 16 divisors (see below), whose sum is σ = 4360910400. Its totient is φ = 726201632.

The previous prime is 2179530011. The next prime is 2179530043. The reversal of 2179530042 is 2400359712.

It is a junction number, because it is equal to n+sod(n) for n = 2179529985 and 2179530012.

It is not an unprimeable number, because it can be changed into a prime (2179530043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61542 + ... + 90257.

It is an arithmetic number, because the mean of its divisors is an integer number (272556900).

Almost surely, 2^2179530042 is an apocalyptic number.

2179530042 is an abundant number, since it is smaller than the sum of its proper divisors (2181380358).

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

2179530042 is a wasteful number, since it uses less digits than its factorization.

2179530042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154197.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 2179530042 is about 46685.4371512145. The cubic root of 2179530042 is about 1296.5450751216.

Adding to 2179530042 its reverse (2400359712), we get a palindrome (4579889754).

The spelling of 2179530042 in words is "two billion, one hundred seventy-nine million, five hundred thirty thousand, forty-two".