2944649 has 4 divisors (see below), whose sum is σ = 2948100. Its totient is φ = 2941200.

The previous prime is 2944637. The next prime is 2944657. The reversal of 2944649 is 9464492.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 573049 + 2371600 = 757^2 + 1540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2944649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2944619) 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, 599 + ... + 2499.

It is an arithmetic number, because the mean of its divisors is an integer number (737025).

2^2944649 is an apocalyptic number.

It is an amenable number.

2944649 is a deficient number, since it is larger than the sum of its proper divisors (3451).

2944649 is a wasteful number, since it uses less digits than its factorization.

2944649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450.

The product of its digits is 62208, while the sum is 38.

The square root of 2944649 is about 1715.9979603717. The cubic root of 2944649 is about 143.3324457610.

The spelling of 2944649 in words is "two million, nine hundred forty-four thousand, six hundred forty-nine".