2645000 has 60 divisors (see below), whose sum is σ = 6478395. Its totient is φ = 1012000.

The previous prime is 2644981. The next prime is 2645011. The reversal of 2645000 is 5462.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 3 ways, for example, as 611524 + 2033476 = 782^2 + 1426^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1150.

It is a self number, because there is not a number n which added to its sum of digits gives 2645000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 114989 + ... + 115011.

2^2645000 is an apocalyptic number.

2645000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2645000

2645000 is an abundant number, since it is smaller than the sum of its proper divisors (3833395).

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

2645000 is an equidigital number, since it uses as much as digits as its factorization.

2645000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2645000 is about 1626.3455967291. The cubic root of 2645000 is about 138.2956623928.

The spelling of 2645000 in words is "two million, six hundred forty-five thousand".