2670644 has 12 divisors (see below), whose sum is σ = 4782624. Its totient is φ = 1304184.

The previous prime is 2670643. The next prime is 2670653. The reversal of 2670644 is 4460762.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2670643) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7592 + ... + 7935.

It is an arithmetic number, because the mean of its divisors is an integer number (398552).

2^2670644 is an apocalyptic number.

It is an amenable number.

2670644 is a deficient number, since it is larger than the sum of its proper divisors (2111980).

2670644 is a wasteful number, since it uses less digits than its factorization.

2670644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15574 (or 15572 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 2670644 is about 1634.2105127553. The cubic root of 2670644 is about 138.7411638449.

The spelling of 2670644 in words is "two million, six hundred seventy thousand, six hundred forty-four".