2045240 has 16 divisors (see below), whose sum is σ = 4601880. Its totient is φ = 818080.

The previous prime is 2045213. The next prime is 2045311. The reversal of 2045240 is 425402.

2045240 = 350² + 351² + ... + 365².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25526 + ... + 25605.

2^2045240 is an apocalyptic number.

2045240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045240 is an abundant number, since it is smaller than the sum of its proper divisors (2556640).

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

2045240 is a wasteful number, since it uses less digits than its factorization.

2045240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51142 (or 51138 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2045240 is about 1430.1188761778. The cubic root of 2045240 is about 126.9350112863.

The spelling of 2045240 in words is "two million, forty-five thousand, two hundred forty".