2049549 has 16 divisors (see below), whose sum is σ = 2950080. Its totient is φ = 1261440.

The previous prime is 2049547. The next prime is 2049569. The reversal of 2049549 is 9459402.

It is not a de Polignac number, because 2049549 - 2¹ = 2049547 is a prime.

It is a super-2 number, since 2×2049549² = 8401302206802, which contains 22 as substring.

2049549 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2049547) 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 15 ways as a sum of consecutive naturals, for example, 1899 + ... + 2775.

It is an arithmetic number, because the mean of its divisors is an integer number (184380).

2^2049549 is an apocalyptic number.

It is an amenable number.

2049549 is a deficient number, since it is larger than the sum of its proper divisors (900531).

2049549 is a wasteful number, since it uses less digits than its factorization.

2049549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2049549 is about 1431.6246016327. The cubic root of 2049549 is about 127.0240928107.

The spelling of 2049549 in words is "two million, forty-nine thousand, five hundred forty-nine".