2605320 has 48 divisors (see below), whose sum is σ = 8468460. Its totient is φ = 694656.

The previous prime is 2605319. The next prime is 2605349. The reversal of 2605320 is 235062.

It can be written as a sum of positive squares in 2 ways, for example, as 2604996 + 324 = 1614^2 + 18^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2605293 and 2605302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3259 + ... + 3978.

2^2605320 is an apocalyptic number.

2605320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2605320 is an abundant number, since it is smaller than the sum of its proper divisors (5863140).

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

2605320 is a wasteful number, since it uses less digits than its factorization.

2605320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7254 (or 7247 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 2605320 is about 1614.1003686264. The cubic root of 2605320 is about 137.6006095610.

The spelling of 2605320 in words is "two million, six hundred five thousand, three hundred twenty".