2820358 has 4 divisors (see below), whose sum is σ = 4230540. Its totient is φ = 1410178.

The previous prime is 2820347. The next prime is 2820359. The reversal of 2820358 is 8530282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8530282 = 2 ⋅4265141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 705088 + ... + 705091.

It is an arithmetic number, because the mean of its divisors is an integer number (1057635).

2^2820358 is an apocalyptic number.

2820358 is a deficient number, since it is larger than the sum of its proper divisors (1410182).

2820358 is a wasteful number, since it uses less digits than its factorization.

2820358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410181.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2820358 is about 1679.3921519407. The cubic root of 2820358 is about 141.2867427322.

The spelling of 2820358 in words is "two million, eight hundred twenty thousand, three hundred fifty-eight".