2820235 has 16 divisors (see below), whose sum is σ = 3773952. Its totient is φ = 2005600.

The previous prime is 2820229. The next prime is 2820239. The reversal of 2820235 is 5320282.

It is not a de Polignac number, because 2820235 - 2⁹ = 2819723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2820239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2040 + ... + 3130.

It is an arithmetic number, because the mean of its divisors is an integer number (235872).

2^2820235 is an apocalyptic number.

2820235 is a deficient number, since it is larger than the sum of its proper divisors (953717).

2820235 is a wasteful number, since it uses less digits than its factorization.

2820235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2820235 is about 1679.3555311488. The cubic root of 2820235 is about 141.2846887941.

It can be divided in two parts, 28 and 20235, that multiplied together give a triangular number (566580 = T₁₀₆₄).

The spelling of 2820235 in words is "two million, eight hundred twenty thousand, two hundred thirty-five".