2820392 has 8 divisors (see below), whose sum is σ = 5288250. Its totient is φ = 1410192.

The previous prime is 2820383. The next prime is 2820401. The reversal of 2820392 is 2930282.

It is an interprime number because it is at equal distance from previous prime (2820383) and next prime (2820401).

It can be written as a sum of positive squares in only one way, i.e., 1552516 + 1267876 = 1246^2 + 1126^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2820392² = 15909222067328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176267 + ... + 176282.

2^2820392 is an apocalyptic number.

It is an amenable number.

2820392 is a deficient number, since it is larger than the sum of its proper divisors (2467858).

2820392 is a wasteful number, since it uses less digits than its factorization.

2820392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352555 (or 352551 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2820392 is about 1679.4022746203. The cubic root of 2820392 is about 141.2873104769.

The spelling of 2820392 in words is "two million, eight hundred twenty thousand, three hundred ninety-two".