2605456 has 40 divisors (see below), whose sum is σ = 5914304. Its totient is φ = 1088640.

The previous prime is 2605439. The next prime is 2605481. The reversal of 2605456 is 6545062.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4546 + ... + 5086.

2^2605456 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 2605456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2957152).

2605456 is an abundant number, since it is smaller than the sum of its proper divisors (3308848).

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

2605456 is a wasteful number, since it uses less digits than its factorization.

2605456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 593 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2605456 is about 1614.1424968075. The cubic root of 2605456 is about 137.6030038104.

The spelling of 2605456 in words is "two million, six hundred five thousand, four hundred fifty-six".