2005746940 has 12 divisors (see below), whose sum is σ = 4212068616. Its totient is φ = 802298768.

The previous prime is 2005746931. The next prime is 2005746973. The reversal of 2005746940 is 496475002.

It is a self number, because there is not a number n which added to its sum of digits gives 2005746940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50143654 + ... + 50143693.

It is an arithmetic number, because the mean of its divisors is an integer number (351005718).

Almost surely, 2^2005746940 is an apocalyptic number.

2005746940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2005746940 is an abundant number, since it is smaller than the sum of its proper divisors (2206321676).

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

2005746940 is a wasteful number, since it uses less digits than its factorization.

2005746940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100287356 (or 100287354 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 2005746940 is about 44785.5662016235. The cubic root of 2005746940 is about 1261.1266776326.

The spelling of 2005746940 in words is "two billion, five million, seven hundred forty-six thousand, nine hundred forty".