2045040 has 40 divisors (see below), whose sum is σ = 6340368. Its totient is φ = 545280.

The previous prime is 2045023. The next prime is 2045047. The reversal of 2045040 is 405402.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045047) 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, 4021 + ... + 4500.

2^2045040 is an apocalyptic number.

2045040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045040 is an abundant number, since it is smaller than the sum of its proper divisors (4295328).

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

2045040 is a wasteful number, since it uses less digits than its factorization.

2045040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8537 (or 8531 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2045040 is about 1430.0489502111. The cubic root of 2045040 is about 126.9308735763.

The spelling of 2045040 in words is "two million, forty-five thousand, forty".