44681407 has 4 divisors (see below), whose sum is σ = 47033080. Its totient is φ = 42329736.

The previous prime is 44681393. The next prime is 44681419. The reversal of 44681407 is 70418644.

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

It is a cyclic number.

It is not a de Polignac number, because 44681407 - 2¹¹ = 44679359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44681437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175808 + ... + 1175845.

It is an arithmetic number, because the mean of its divisors is an integer number (11758270).

Almost surely, 2^44681407 is an apocalyptic number.

44681407 is a deficient number, since it is larger than the sum of its proper divisors (2351673).

44681407 is a wasteful number, since it uses less digits than its factorization.

44681407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351672.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 44681407 is about 6684.4152324642. The cubic root of 44681407 is about 354.8479332835.

The spelling of 44681407 in words is "forty-four million, six hundred eighty-one thousand, four hundred seven".