2845440 has 216 divisors, whose sum is σ = 11160240. Its totient is φ = 663552.

The previous prime is 2845433. The next prime is 2845457. The reversal of 2845440 is 445482.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149751 + ... + 149769.

2^2845440 is an apocalyptic number.

2845440 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 2845440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5580120).

2845440 is an abundant number, since it is smaller than the sum of its proper divisors (8314800).

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

2845440 is a wasteful number, since it uses less digits than its factorization.

2845440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 2845440 is about 1686.8432055173. The cubic root of 2845440 is about 141.7043375406.

The spelling of 2845440 in words is "two million, eight hundred forty-five thousand, four hundred forty".