2001457746 has 36 divisors (see below), whose sum is σ = 4533253998. Its totient is φ = 638142912.

The previous prime is 2001457691. The next prime is 2001457813. The reversal of 2001457746 is 6477541002.

It can be written as a sum of positive squares in only one way, i.e., 1919754225 + 81703521 = 43815^2 + 9039^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2001457746.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 95575 + ... + 114618.

Almost surely, 2^2001457746 is an apocalyptic number.

2001457746 is an abundant number, since it is smaller than the sum of its proper divisors (2531796252).

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

2001457746 is a wasteful number, since it uses less digits than its factorization.

2001457746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210247 (or 210221 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 2001457746 is about 44737.6546770168. The cubic root of 2001457746 is about 1260.2270830323.

Adding to 2001457746 its reverse (6477541002), we get a palindrome (8478998748).

The spelling of 2001457746 in words is "two billion, one million, four hundred fifty-seven thousand, seven hundred forty-six".