2081590406 has 32 divisors (see below), whose sum is σ = 3609722880. Its totient is φ = 881820000.

The previous prime is 2081590403. The next prime is 2081590409. The reversal of 2081590406 is 6040951802.

It is an interprime number because it is at equal distance from previous prime (2081590403) and next prime (2081590409).

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1626875 + ... + 1628153.

It is an arithmetic number, because the mean of its divisors is an integer number (112803840).

Almost surely, 2^2081590406 is an apocalyptic number.

2081590406 is a deficient number, since it is larger than the sum of its proper divisors (1528132474).

2081590406 is a wasteful number, since it uses less digits than its factorization.

2081590406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 2081590406 is about 45624.4496514752. The cubic root of 2081590406 is about 1276.8261221782.

The spelling of 2081590406 in words is "two billion, eighty-one million, five hundred ninety thousand, four hundred six".