2730644 has 12 divisors (see below), whose sum is σ = 5461344. Its totient is φ = 1170264.

The previous prime is 2730643. The next prime is 2730649. The reversal of 2730644 is 4460372.

It is a happy number.

2730644 is an admirable number.

It is a d-powerful number, because it can be written as 2 + 7 + 3⁷ + 0 + 6⁸ + 4⁴ + 4¹⁰ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48734 + ... + 48789.

It is an arithmetic number, because the mean of its divisors is an integer number (455112).

2^2730644 is an apocalyptic number.

It is an amenable number.

2730644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2730644 is a wasteful number, since it uses less digits than its factorization.

2730644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97534 (or 97532 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 2730644 is about 1652.4660359596. The cubic root of 2730644 is about 139.7724876154.

The spelling of 2730644 in words is "two million, seven hundred thirty thousand, six hundred forty-four".