2906644 has 12 divisors (see below), whose sum is σ = 5478004. Its totient is φ = 1341504.

The previous prime is 2906633. The next prime is 2906663. The reversal of 2906644 is 4466092.

It can be written as a sum of positive squares in 2 ways, for example, as 980100 + 1926544 = 990^2 + 1388^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27897 + ... + 28000.

2^2906644 is an apocalyptic number.

It is an amenable number.

2906644 is a deficient number, since it is larger than the sum of its proper divisors (2571360).

2906644 is a wasteful number, since it uses less digits than its factorization.

2906644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55914 (or 55912 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2906644 is about 1704.8882661336. Note that the first 3 decimals coincide. The cubic root of 2906644 is about 142.7131354533.

The spelling of 2906644 in words is "two million, nine hundred six thousand, six hundred forty-four".