2609604 has 48 divisors (see below), whose sum is σ = 6879040. Its totient is φ = 855360.

The previous prime is 2609599. The next prime is 2609639. The reversal of 2609604 is 4069062.

2609604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7719 + ... + 8049.

2^2609604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2609604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3439520).

2609604 is an abundant number, since it is smaller than the sum of its proper divisors (4269436).

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

2609604 is a wasteful number, since it uses less digits than its factorization.

2609604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 2609604 is about 1615.4268785680. The cubic root of 2609604 is about 137.6759884276.

The spelling of 2609604 in words is "two million, six hundred nine thousand, six hundred four".