2645144 has 8 divisors (see below), whose sum is σ = 4959660. Its totient is φ = 1322568.

The previous prime is 2645141. The next prime is 2645171. The reversal of 2645144 is 4415462.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165314 + ... + 165329.

2^2645144 is an apocalyptic number.

It is an amenable number.

2645144 is a deficient number, since it is larger than the sum of its proper divisors (2314516).

2645144 is a wasteful number, since it uses less digits than its factorization.

2645144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330649 (or 330645 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 2645144 is about 1626.3898671598. The cubic root of 2645144 is about 138.2981720606.

The spelling of 2645144 in words is "two million, six hundred forty-five thousand, one hundred forty-four".