2604870 has 48 divisors (see below), whose sum is σ = 6862752. Its totient is φ = 685440.

The previous prime is 2604869. The next prime is 2604887. The reversal of 2604870 is 784062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9130 + ... + 9410.

It is an arithmetic number, because the mean of its divisors is an integer number (142974).

2^2604870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2604870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3431376).

2604870 is an abundant number, since it is smaller than the sum of its proper divisors (4257882).

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

2604870 is a wasteful number, since it uses less digits than its factorization.

2604870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 2604870 is about 1613.9609660707. The cubic root of 2604870 is about 137.5926868184.

The spelling of 2604870 in words is "two million, six hundred four thousand, eight hundred seventy".