2011772 has 12 divisors (see below), whose sum is σ = 4023600. Its totient is φ = 862176.

The previous prime is 2011769. The next prime is 2011799. The reversal of 2011772 is 2771102.

2011772 is an admirable number.

It is a super-3 number, since 3×2011772³ = 24426291333802714944, which contains 333 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 35897 + ... + 35952.

It is an arithmetic number, because the mean of its divisors is an integer number (335300).

2^2011772 is an apocalyptic number.

It is an amenable number.

2011772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2011772 is a wasteful number, since it uses less digits than its factorization.

2011772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71860 (or 71858 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 2011772 is about 1418.3694864174. The cubic root of 2011772 is about 126.2388180797.

Adding to 2011772 its reverse (2771102), we get a palindrome (4782874).

The spelling of 2011772 in words is "two million, eleven thousand, seven hundred seventy-two".