2730404 has 12 divisors (see below), whose sum is σ = 5059404. Its totient is φ = 1284864.

The previous prime is 2730397. The next prime is 2730439. The reversal of 2730404 is 4040372.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1827904 + 902500 = 1352^2 + 950^2 .

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, 20009 + ... + 20144.

It is an arithmetic number, because the mean of its divisors is an integer number (421617).

2^2730404 is an apocalyptic number.

It is an amenable number.

2730404 is a deficient number, since it is larger than the sum of its proper divisors (2329000).

2730404 is a wasteful number, since it uses less digits than its factorization.

2730404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40174 (or 40172 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 2730404 is about 1652.3934156247. The cubic root of 2730404 is about 139.7683925643.

Adding to 2730404 its reverse (4040372), we get a palindrome (6770776).

The spelling of 2730404 in words is "two million, seven hundred thirty thousand, four hundred four".