2820046 has 4 divisors (see below), whose sum is σ = 4230072. Its totient is φ = 1410022.

The previous prime is 2820043. The next prime is 2820071. The reversal of 2820046 is 6400282.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2819999 and 2820026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 705010 + ... + 705013.

It is an arithmetic number, because the mean of its divisors is an integer number (1057518).

2^2820046 is an apocalyptic number.

2820046 is a deficient number, since it is larger than the sum of its proper divisors (1410026).

2820046 is a wasteful number, since it uses less digits than its factorization.

2820046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410025.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2820046 is about 1679.2992586195. The cubic root of 2820046 is about 141.2815326265.

The spelling of 2820046 in words is "two million, eight hundred twenty thousand, forty-six".