2012179890 has 32 divisors (see below), whose sum is σ = 5519122560. Its totient is φ = 459926784.

The previous prime is 2012179889. The next prime is 2012179913. The reversal of 2012179890 is 989712102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4790695 + ... + 4791114.

It is an arithmetic number, because the mean of its divisors is an integer number (172472580).

Almost surely, 2^2012179890 is an apocalyptic number.

2012179890 is an abundant number, since it is smaller than the sum of its proper divisors (3506942670).

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

2012179890 is a wasteful number, since it uses less digits than its factorization.

2012179890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581826.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 2012179890 is about 44857.3281638575. The cubic root of 2012179890 is about 1262.4734921076.

The spelling of 2012179890 in words is "two billion, twelve million, one hundred seventy-nine thousand, eight hundred ninety".