44028813 has 4 divisors (see below), whose sum is σ = 58705088. Its totient is φ = 29352540.

The previous prime is 44028811. The next prime is 44028839. The reversal of 44028813 is 31882044.

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 not a de Polignac number, because 44028813 - 2¹ = 44028811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44028811) 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, 7338133 + ... + 7338138.

It is an arithmetic number, because the mean of its divisors is an integer number (14676272).

Almost surely, 2^44028813 is an apocalyptic number.

It is an amenable number.

44028813 is a deficient number, since it is larger than the sum of its proper divisors (14676275).

44028813 is a wasteful number, since it uses less digits than its factorization.

44028813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14676274.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 44028813 is about 6635.4210868640. The cubic root of 44028813 is about 353.1118772684. Note that the first 3 decimals are identical.

The spelling of 44028813 in words is "forty-four million, twenty-eight thousand, eight hundred thirteen".