2645064 has 48 divisors (see below), whose sum is σ = 7588620. Its totient is φ = 829440.

The previous prime is 2645063. The next prime is 2645087. The reversal of 2645064 is 4605462.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2528100 + 116964 = 1590^2 + 342^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144 + ... + 2304.

2^2645064 is an apocalyptic number.

2645064 is a gapful number since it is divisible by the number (24) 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 2645064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3794310).

2645064 is an abundant number, since it is smaller than the sum of its proper divisors (4943556).

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

2645064 is a wasteful number, since it uses less digits than its factorization.

2645064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190 (or 2183 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2645064 is about 1626.3652726248. The cubic root of 2645064 is about 138.2967778120.

The spelling of 2645064 in words is "two million, six hundred forty-five thousand, sixty-four".