2005746944 has 18 divisors (see below), whose sum is σ = 4003659450. Its totient is φ = 1002873344.

The previous prime is 2005746931. The next prime is 2005746973. The reversal of 2005746944 is 4496475002.

It can be written as a sum of positive squares in only one way, i.e., 1462297600 + 543449344 = 38240^2 + 23312^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3917219 + ... + 3917730.

It is an arithmetic number, because the mean of its divisors is an integer number (222425525).

Almost surely, 2^2005746944 is an apocalyptic number.

It is an amenable number.

2005746944 is a deficient number, since it is larger than the sum of its proper divisors (1997912506).

2005746944 is an frugal number, since it uses more digits than its factorization.

2005746944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7834965 (or 7834951 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 2005746944 is about 44785.5662462807. The cubic root of 2005746944 is about 1261.1266784709.

The spelling of 2005746944 in words is "two billion, five million, seven hundred forty-six thousand, nine hundred forty-four".