2072645 has 16 divisors (see below), whose sum is σ = 2643840. Its totient is φ = 1556544.

The previous prime is 2072617. The next prime is 2072647. The reversal of 2072645 is 5462702.

It is a de Polignac number, because none of the positive numbers 2^k-2072645 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2072647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7571 + ... + 7839.

It is an arithmetic number, because the mean of its divisors is an integer number (165240).

2^2072645 is an apocalyptic number.

It is an amenable number.

2072645 is a deficient number, since it is larger than the sum of its proper divisors (571195).

2072645 is a wasteful number, since it uses less digits than its factorization.

2072645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2072645 is about 1439.6683645896. The cubic root of 2072645 is about 127.4994489275.

The spelling of 2072645 in words is "two million, seventy-two thousand, six hundred forty-five".