2803842 has 32 divisors (see below), whose sum is σ = 6292800. Its totient is φ = 925344.

The previous prime is 2803837. The next prime is 2803847. The reversal of 2803842 is 2483082.

2803842 is a `hidden beast` number, since 280 + 384 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (2803837) and next prime (2803847).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2803847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7209 + ... + 7587.

It is an arithmetic number, because the mean of its divisors is an integer number (196650).

2^2803842 is an apocalyptic number.

2803842 is an abundant number, since it is smaller than the sum of its proper divisors (3488958).

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

2803842 is a wasteful number, since it uses less digits than its factorization.

2803842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 2803842 is about 1674.4676766065. The cubic root of 2803842 is about 141.0104111823.

The spelling of 2803842 in words is "two million, eight hundred three thousand, eight hundred forty-two".