2001650 has 72 divisors (see below), whose sum is σ = 4664880. Its totient is φ = 635040.

The previous prime is 2001641. The next prime is 2001653. The reversal of 2001650 is 561002.

It is a Harshad number since it is a multiple of its sum of digits (14).

2001650 is a modest number, since divided by 1650 gives 200 as remainder.

It is a nialpdrome in base 13.

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2001653) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 46529 + ... + 46571.

It is an arithmetic number, because the mean of its divisors is an integer number (64790).

2^2001650 is an apocalyptic number.

2001650 is an abundant number, since it is smaller than the sum of its proper divisors (2663230).

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

2001650 is a wasteful number, since it uses less digits than its factorization.

2001650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2001650 is about 1414.7968051985. The cubic root of 2001650 is about 126.0267432946.

Adding to 2001650 its reverse (561002), we get a palindrome (2562652).

The spelling of 2001650 in words is "two million, one thousand, six hundred fifty".