2606404 has 12 divisors (see below), whose sum is σ = 4718700. Its totient is φ = 1258208.

The previous prime is 2606393. The next prime is 2606407. The reversal of 2606404 is 4046062.

It can be written as a sum of positive squares in 2 ways, for example, as 1684804 + 921600 = 1298^2 + 960^2 .

It is a super-2 number, since 2×2606404² = 13586683622432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2606407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11119 + ... + 11350.

It is an arithmetic number, because the mean of its divisors is an integer number (393225).

2^2606404 is an apocalyptic number.

It is an amenable number.

2606404 is a deficient number, since it is larger than the sum of its proper divisors (2112296).

2606404 is a wasteful number, since it uses less digits than its factorization.

2606404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22502 (or 22500 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2606404 is about 1614.4361244719. The cubic root of 2606404 is about 137.6196908228.

The spelling of 2606404 in words is "two million, six hundred six thousand, four hundred four".