2285720 has 16 divisors (see below), whose sum is σ = 5142960. Its totient is φ = 914272.

The previous prime is 2285711. The next prime is 2285741. The reversal of 2285720 is 275822.

It is a self number, because there is not a number n which added to its sum of digits gives 2285720.

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, 28532 + ... + 28611.

It is an arithmetic number, because the mean of its divisors is an integer number (321435).

2^2285720 is an apocalyptic number.

2285720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2285720 is an abundant number, since it is smaller than the sum of its proper divisors (2857240).

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

2285720 is a wasteful number, since it uses less digits than its factorization.

2285720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57154 (or 57150 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 2285720 is about 1511.8597818581. The cubic root of 2285720 is about 131.7268609739.

The spelling of 2285720 in words is "two million, two hundred eighty-five thousand, seven hundred twenty".