2081590042 has 16 divisors (see below), whose sum is σ = 3576398400. Its totient is φ = 890120448.

The previous prime is 2081590009. The next prime is 2081590073. The reversal of 2081590042 is 2400951802.

It is a junction number, because it is equal to n+sod(n) for n = 2081589986 and 2081590013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159288 + ... + 171859.

It is an arithmetic number, because the mean of its divisors is an integer number (223524900).

Almost surely, 2^2081590042 is an apocalyptic number.

2081590042 is a deficient number, since it is larger than the sum of its proper divisors (1494808358).

2081590042 is a wasteful number, since it uses less digits than its factorization.

2081590042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331605.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 2081590042 is about 45624.4456623859. The cubic root of 2081590042 is about 1276.8260477536.

The spelling of 2081590042 in words is "two billion, eighty-one million, five hundred ninety thousand, forty-two".