4539944 has 8 divisors (see below), whose sum is σ = 8512410. Its totient is φ = 2269968.

The previous prime is 4539929. The next prime is 4539949. The reversal of 4539944 is 4499354.

It can be written as a sum of positive squares in only one way, i.e., 2402500 + 2137444 = 1550^2 + 1462^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×4539944² = 41222183046272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4539898 and 4539907.

It is not an unprimeable number, because it can be changed into a prime (4539949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283739 + ... + 283754.

Almost surely, 2^4539944 is an apocalyptic number.

It is an amenable number.

4539944 is a deficient number, since it is larger than the sum of its proper divisors (3972466).

4539944 is a wasteful number, since it uses less digits than its factorization.

4539944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567499 (or 567495 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 4539944 is about 2130.7144341746. The cubic root of 4539944 is about 165.5834137433.

The spelling of 4539944 in words is "four million, five hundred thirty-nine thousand, nine hundred forty-four".