2785020 has 96 divisors (see below), whose sum is σ = 9408000. Its totient is φ = 601344.

The previous prime is 2785019. The next prime is 2785021. The reversal of 2785020 is 205872.

It is an interprime number because it is at equal distance from previous prime (2785019) and next prime (2785021).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2785021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7806 + ... + 8154.

It is an arithmetic number, because the mean of its divisors is an integer number (98000).

2^2785020 is an apocalyptic number.

2785020 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 2785020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4704000).

2785020 is an abundant number, since it is smaller than the sum of its proper divisors (6622980).

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

2785020 is a wasteful number, since it uses less digits than its factorization.

2785020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 2785020 is about 1668.8379190323. The cubic root of 2785020 is about 140.6941714021.

The spelling of 2785020 in words is "two million, seven hundred eighty-five thousand, twenty".