2944728 has 32 divisors (see below), whose sum is σ = 8180400. Its totient is φ = 981504.

The previous prime is 2944727. The next prime is 2944751. The reversal of 2944728 is 8274492.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 2²⁰ + 9⁴ + 4⁵ + 4⁷ + 7⁷ + 2²⁰ + 8² .

It is a junction number, because it is equal to n+sod(n) for n = 2944692 and 2944701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2944727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6601 + ... + 7032.

2^2944728 is an apocalyptic number.

It is an amenable number.

2944728 is an abundant number, since it is smaller than the sum of its proper divisors (5235672).

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

2944728 is a wasteful number, since it uses less digits than its factorization.

2944728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13648 (or 13638 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2944728 is about 1716.0209788927. The cubic root of 2944728 is about 143.3337275393. Note that the first 3 decimals are identical.

The spelling of 2944728 in words is "two million, nine hundred forty-four thousand, seven hundred twenty-eight".