44020045 has 16 divisors (see below), whose sum is σ = 55302912. Its totient is φ = 33573760.

The previous prime is 44019947. The next prime is 44020069. The reversal of 44020045 is 54002044.

It is not a de Polignac number, because 44020045 - 2⁹ = 44019533 is a prime.

It is a super-5 number, since 5×44020045⁵ (a number of 39 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57465 + ... + 58225.

It is an arithmetic number, because the mean of its divisors is an integer number (3456432).

Almost surely, 2^44020045 is an apocalyptic number.

It is an amenable number.

44020045 is a deficient number, since it is larger than the sum of its proper divisors (11282867).

44020045 is a wasteful number, since it uses less digits than its factorization.

44020045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 44020045 is about 6634.7603573905. The cubic root of 44020045 is about 353.0884358727.

Adding to 44020045 its reverse (54002044), we get a palindrome (98022089).

The spelling of 44020045 in words is "forty-four million, twenty thousand, forty-five".