2820396 has 24 divisors (see below), whose sum is σ = 6690544. Its totient is φ = 924480.

The previous prime is 2820383. The next prime is 2820401. The reversal of 2820396 is 6930282.

It is a super-3 number, since 3×2820396³ = 67305650333776377408, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1195 + ... + 2658.

2^2820396 is an apocalyptic number.

It is an amenable number.

2820396 is an abundant number, since it is smaller than the sum of its proper divisors (3870148).

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

2820396 is a wasteful number, since it uses less digits than its factorization.

2820396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921 (or 3919 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2820396 is about 1679.4034655198. The cubic root of 2820396 is about 141.2873772701.

The spelling of 2820396 in words is "two million, eight hundred twenty thousand, three hundred ninety-six".