2081590404 has 24 divisors (see below), whose sum is σ = 4860011520. Its totient is φ = 693439584.

The previous prime is 2081590403. The next prime is 2081590409. The reversal of 2081590404 is 4040951802.

It is a super-2 number, since 2×2081590404² = 8666037220049766432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2081590403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32199 + ... + 72110.

It is an arithmetic number, because the mean of its divisors is an integer number (202500480).

Almost surely, 2^2081590404 is an apocalyptic number.

It is an amenable number.

2081590404 is an abundant number, since it is smaller than the sum of its proper divisors (2778421116).

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

2081590404 is a wasteful number, since it uses less digits than its factorization.

2081590404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105979 (or 105977 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 2081590404 is about 45624.4496295572. The cubic root of 2081590404 is about 1276.8261217693.

The spelling of 2081590404 in words is "two billion, eighty-one million, five hundred ninety thousand, four hundred four".