2045544 has 32 divisors (see below), whose sum is σ = 5292000. Its totient is φ = 658112.

The previous prime is 2045543. The next prime is 2045557. The reversal of 2045544 is 4455402.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2045543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774 + ... + 2165.

It is an arithmetic number, because the mean of its divisors is an integer number (165375).

2^2045544 is an apocalyptic number.

2045544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2045544 is an abundant number, since it is smaller than the sum of its proper divisors (3246456).

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

2045544 is a wasteful number, since it uses less digits than its factorization.

2045544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977 (or 2973 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 2045544 is about 1430.2251570994. The cubic root of 2045544 is about 126.9413000888.

The spelling of 2045544 in words is "two million, forty-five thousand, five hundred forty-four".