44349981 has 8 divisors (see below), whose sum is σ = 63682080. Its totient is φ = 27292272.

The previous prime is 44349979. The next prime is 44349983. The reversal of 44349981 is 18994344.

44349981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (44349979) and next prime (44349983).

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

It is not a de Polignac number, because 44349981 - 2¹ = 44349979 is a prime.

It is a super-2 number, since 2×44349981² = 3933841629400722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44349983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568551 + ... + 568628.

It is an arithmetic number, because the mean of its divisors is an integer number (7960260).

Almost surely, 2^44349981 is an apocalyptic number.

It is an amenable number.

44349981 is a deficient number, since it is larger than the sum of its proper divisors (19332099).

44349981 is a wasteful number, since it uses less digits than its factorization.

44349981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137195.

The product of its digits is 124416, while the sum is 42.

The square root of 44349981 is about 6659.5781397923. The cubic root of 44349981 is about 353.9683890826.

The spelling of 44349981 in words is "forty-four million, three hundred forty-nine thousand, nine hundred eighty-one".