2049156 has 18 divisors (see below), whose sum is σ = 5179902. Its totient is φ = 683040.

The previous prime is 2049149. The next prime is 2049161. The reversal of 2049156 is 6519402.

It can be written as a sum of positive squares in only one way, i.e., 2005056 + 44100 = 1416^2 + 210^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28425 + ... + 28496.

2^2049156 is an apocalyptic number.

It is an amenable number.

2049156 is an abundant number, since it is smaller than the sum of its proper divisors (3130746).

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

2049156 is a wasteful number, since it uses less digits than its factorization.

2049156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56931 (or 56926 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2049156 is about 1431.4873384002. The cubic root of 2049156 is about 127.0159733562.

The spelling of 2049156 in words is "two million, forty-nine thousand, one hundred fifty-six".