2045542 has 12 divisors (see below), whose sum is σ = 3260340. Its totient is φ = 962336.

The previous prime is 2045539. The next prime is 2045543. The reversal of 2045542 is 2455402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045543) 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 5 ways as a sum of consecutive naturals, for example, 1192 + ... + 2347.

It is an arithmetic number, because the mean of its divisors is an integer number (271695).

2^2045542 is an apocalyptic number.

2045542 is a deficient number, since it is larger than the sum of its proper divisors (1214798).

2045542 is a wasteful number, since it uses less digits than its factorization.

2045542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575 (or 3558 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2045542 is about 1430.2244579086. The cubic root of 2045542 is about 126.9412587172.

The spelling of 2045542 in words is "two million, forty-five thousand, five hundred forty-two".