4044721 has 4 divisors (see below), whose sum is σ = 4096000. Its totient is φ = 3993444.

The previous prime is 4044713. The next prime is 4044731. The reversal of 4044721 is 1274404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4044721 - 2³ = 4044713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4044692 and 4044701.

It is not an unprimeable number, because it can be changed into a prime (4044731) 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, 25521 + ... + 25678.

It is an arithmetic number, because the mean of its divisors is an integer number (1024000).

Almost surely, 2^4044721 is an apocalyptic number.

It is an amenable number.

4044721 is a deficient number, since it is larger than the sum of its proper divisors (51279).

4044721 is an equidigital number, since it uses as much as digits as its factorization.

4044721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51278.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 4044721 is about 2011.1491739799. The cubic root of 4044721 is about 159.3294987883.

The spelling of 4044721 in words is "four million, forty-four thousand, seven hundred twenty-one".