2049564 has 24 divisors (see below), whose sum is σ = 5217408. Its totient is φ = 621040.

The previous prime is 2049547. The next prime is 2049569. The reversal of 2049564 is 4659402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2049569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7632 + ... + 7895.

It is an arithmetic number, because the mean of its divisors is an integer number (217392).

2^2049564 is an apocalyptic number.

It is an amenable number.

2049564 is an abundant number, since it is smaller than the sum of its proper divisors (3167844).

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

2049564 is a wasteful number, since it uses less digits than its factorization.

2049564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15545 (or 15543 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2049564 is about 1431.6298404266. The cubic root of 2049564 is about 127.0244026929.

The spelling of 2049564 in words is "two million, forty-nine thousand, five hundred sixty-four".