44040813 has 8 divisors (see below), whose sum is σ = 59326848. Its totient is φ = 29057664.

The previous prime is 44040809. The next prime is 44040817. The reversal of 44040813 is 31804044.

It is an interprime number because it is at equal distance from previous prime (44040809) and next prime (44040817).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44040813 - 2² = 44040809 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44040817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75381 + ... + 75962.

It is an arithmetic number, because the mean of its divisors is an integer number (7415856).

Almost surely, 2^44040813 is an apocalyptic number.

It is an amenable number.

44040813 is a deficient number, since it is larger than the sum of its proper divisors (15286035).

44040813 is a wasteful number, since it uses less digits than its factorization.

44040813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151443.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 44040813 is about 6636.3252632764. The cubic root of 44040813 is about 353.1439544268.

Adding to 44040813 its reverse (31804044), we get a palindrome (75844857).

The spelling of 44040813 in words is "forty-four million, forty thousand, eight hundred thirteen".