2045080 has 64 divisors (see below), whose sum is σ = 4989600. Its totient is φ = 752640.

The previous prime is 2045077. The next prime is 2045089. The reversal of 2045080 is 805402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045089) 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, 47539 + ... + 47581.

2^2045080 is an apocalyptic number.

2045080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2045080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2494800).

2045080 is an abundant number, since it is smaller than the sum of its proper divisors (2944520).

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

2045080 is a wasteful number, since it uses less digits than its factorization.

2045080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2045080 is about 1430.0629356780. The cubic root of 2045080 is about 126.9317011399.

Multiplying 2045080 by its sum of digits (19), we get a triangular number (38856520 = T₈₈₁₅).

The spelling of 2045080 in words is "two million, forty-five thousand, eighty".