2944638 has 24 divisors (see below), whose sum is σ = 6756048. Its totient is φ = 923712.

The previous prime is 2944637. The next prime is 2944657. The reversal of 2944638 is 8364492.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2944637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4506 + ... + 5117.

It is an arithmetic number, because the mean of its divisors is an integer number (281502).

2^2944638 is an apocalyptic number.

2944638 is an abundant number, since it is smaller than the sum of its proper divisors (3811410).

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

2944638 is a wasteful number, since it uses less digits than its factorization.

2944638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9648 (or 9645 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 2944638 is about 1715.9947552367. The cubic root of 2944638 is about 143.3322672837.

The spelling of 2944638 in words is "two million, nine hundred forty-four thousand, six hundred thirty-eight".