2803940 has 12 divisors (see below), whose sum is σ = 5888316. Its totient is φ = 1121568.

The previous prime is 2803939. The next prime is 2803967. The reversal of 2803940 is 493082.

It can be written as a sum of positive squares in 2 ways, for example, as 1705636 + 1098304 = 1306^2 + 1048^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70079 + ... + 70118.

It is an arithmetic number, because the mean of its divisors is an integer number (490693).

2^2803940 is an apocalyptic number.

2803940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2803940 is an abundant number, since it is smaller than the sum of its proper divisors (3084376).

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

2803940 is a wasteful number, since it uses less digits than its factorization.

2803940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140206 (or 140204 counting only the distinct ones).

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

The square root of 2803940 is about 1674.4969393821. The cubic root of 2803940 is about 141.0120540304.

The spelling of 2803940 in words is "two million, eight hundred three thousand, nine hundred forty".