44020731 has 4 divisors (see below), whose sum is σ = 58694312. Its totient is φ = 29347152.

The previous prime is 44020727. The next prime is 44020733. The reversal of 44020731 is 13702044.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 44020731 - 2² = 44020727 is a prime.

It is a super-2 number, since 2×44020731² = 3875649515548722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44020698 and 44020707.

It is not an unprimeable number, because it can be changed into a prime (44020733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7336786 + ... + 7336791.

It is an arithmetic number, because the mean of its divisors is an integer number (14673578).

Almost surely, 2^44020731 is an apocalyptic number.

44020731 is a deficient number, since it is larger than the sum of its proper divisors (14673581).

44020731 is a wasteful number, since it uses less digits than its factorization.

44020731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14673580.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 44020731 is about 6634.8120546101. The cubic root of 44020731 is about 353.0902700175.

Adding to 44020731 its reverse (13702044), we get a palindrome (57722775).

The spelling of 44020731 in words is "forty-four million, twenty thousand, seven hundred thirty-one".