2072644 has 24 divisors (see below), whose sum is σ = 4202240. Its totient is φ = 876096.

The previous prime is 2072617. The next prime is 2072647. The reversal of 2072644 is 4462702.

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 7 ways as a sum of consecutive naturals, for example, 1744 + ... + 2680.

2^2072644 is an apocalyptic number.

It is an amenable number.

2072644 is an abundant number, since it is smaller than the sum of its proper divisors (2129596).

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

2072644 is a wasteful number, since it uses less digits than its factorization.

2072644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1025 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 2072644 is about 1439.6680172873. The cubic root of 2072644 is about 127.4994284224.

The spelling of 2072644 in words is "two million, seventy-two thousand, six hundred forty-four".