2620804 has 24 divisors (see below), whose sum is σ = 4874688. Its totient is φ = 1230240.

The previous prime is 2620741. The next prime is 2620811. The reversal of 2620804 is 4080262.

It is a super-2 number, since 2×2620804² = 13737227212832, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5379 + ... + 5845.

It is an arithmetic number, because the mean of its divisors is an integer number (203112).

2^2620804 is an apocalyptic number.

It is an amenable number.

2620804 is a deficient number, since it is larger than the sum of its proper divisors (2253884).

2620804 is a wasteful number, since it uses less digits than its factorization.

2620804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2620804 is about 1618.8897430029. The cubic root of 2620804 is about 137.8726683775.

The spelling of 2620804 in words is "two million, six hundred twenty thousand, eight hundred four".