2820492 has 18 divisors (see below), whose sum is σ = 7129668. Its totient is φ = 940152.

The previous prime is 2820491. The next prime is 2820509. The reversal of 2820492 is 2940282.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (2820491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39138 + ... + 39209.

2^2820492 is an apocalyptic number.

It is an amenable number.

2820492 is an abundant number, since it is smaller than the sum of its proper divisors (4309176).

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

2820492 is a wasteful number, since it uses less digits than its factorization.

2820492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78357 (or 78352 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2820492 is about 1679.4320468539. The cubic root of 2820492 is about 141.2889802878.

The spelling of 2820492 in words is "two million, eight hundred twenty thousand, four hundred ninety-two".