2820074 has 4 divisors (see below), whose sum is σ = 4230114. Its totient is φ = 1410036.

The previous prime is 2820071. The next prime is 2820089. The reversal of 2820074 is 4700282.

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

It can be written as a sum of positive squares in only one way, i.e., 2122849 + 697225 = 1457^2 + 835^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2820071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 705017 + ... + 705020.

2^2820074 is an apocalyptic number.

2820074 is a deficient number, since it is larger than the sum of its proper divisors (1410040).

2820074 is a wasteful number, since it uses less digits than its factorization.

2820074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410039.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 2820074 is about 1679.3075954095. The cubic root of 2820074 is about 141.2820002158.

It can be divided in two parts, 28 and 20074, that added together give a palindrome (20102).

The spelling of 2820074 in words is "two million, eight hundred twenty thousand, seventy-four".