2001650739 has 16 divisors (see below), whose sum is σ = 3038079744. Its totient is φ = 1160376800.

The previous prime is 2001650723. The next prime is 2001650743. The reversal of 2001650739 is 9370561002.

It is not a de Polignac number, because 2001650739 - 2⁴ = 2001650723 is a prime.

It is a super-2 number, since 2×2001650739² = 8013211361878492242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2001650759) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1317852 + ... + 1319369.

It is an arithmetic number, because the mean of its divisors is an integer number (189879984).

Almost surely, 2^2001650739 is an apocalyptic number.

2001650739 is a deficient number, since it is larger than the sum of its proper divisors (1036429005).

2001650739 is a wasteful number, since it uses less digits than its factorization.

2001650739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637258.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 2001650739 is about 44739.8115664338. The cubic root of 2001650739 is about 1260.2675880407.

The spelling of 2001650739 in words is "two billion, one million, six hundred fifty thousand, seven hundred thirty-nine".