2006126540 has 24 divisors (see below), whose sum is σ = 4595854032. Its totient is φ = 729500480.

The previous prime is 2006126503. The next prime is 2006126557. The reversal of 2006126540 is 456216002.

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, 4559159 + ... + 4559598.

It is an arithmetic number, because the mean of its divisors is an integer number (191493918).

Almost surely, 2^2006126540 is an apocalyptic number.

2006126540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2006126540 is an abundant number, since it is smaller than the sum of its proper divisors (2589727492).

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

2006126540 is a wasteful number, since it uses less digits than its factorization.

2006126540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9118777 (or 9118775 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2006126540 is about 44789.8039736724. The cubic root of 2006126540 is about 1261.2062312858.

The spelling of 2006126540 in words is "two billion, six million, one hundred twenty-six thousand, five hundred forty".