44808981 has 24 divisors (see below), whose sum is σ = 71748864. Its totient is φ = 24776640.

The previous prime is 44808977. The next prime is 44808983. The reversal of 44808981 is 18980844.

It is not a de Polignac number, because 44808981 - 2² = 44808977 is a prime.

It is a super-3 number, since 3×44808981³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44808983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360 + ... + 9473.

It is an arithmetic number, because the mean of its divisors is an integer number (2989536).

Almost surely, 2^44808981 is an apocalyptic number.

It is an amenable number.

44808981 is a deficient number, since it is larger than the sum of its proper divisors (26939883).

44808981 is a wasteful number, since it uses less digits than its factorization.

44808981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9881 (or 9874 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 44808981 is about 6693.9510754113. The cubic root of 44808981 is about 355.1853320454.

The spelling of 44808981 in words is "forty-four million, eight hundred eight thousand, nine hundred eighty-one".