2011950 has 72 divisors (see below), whose sum is σ = 5745168. Its totient is φ = 503040.

The previous prime is 2011939. The next prime is 2011951. The reversal of 2011950 is 591102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011951) by changing a digit.

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 in 35 ways as a sum of consecutive naturals, for example, 7519 + ... + 7781.

It is an arithmetic number, because the mean of its divisors is an integer number (79794).

2^2011950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2011950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2872584).

2011950 is an abundant number, since it is smaller than the sum of its proper divisors (3733218).

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

2011950 is a wasteful number, since it uses less digits than its factorization.

2011950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 2011950 is about 1418.4322331363. The cubic root of 2011950 is about 126.2425411402.

The spelling of 2011950 in words is "two million, eleven thousand, nine hundred fifty".