44685945 has 32 divisors (see below), whose sum is σ = 84119040. Its totient is φ = 22429440.

The previous prime is 44685937. The next prime is 44685947. The reversal of 44685945 is 54958644.

It is not a de Polignac number, because 44685945 - 2³ = 44685937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 44685945.

It is not an unprimeable number, because it can be changed into a prime (44685947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7441 + ... + 12030.

It is an arithmetic number, because the mean of its divisors is an integer number (2628720).

Almost surely, 2^44685945 is an apocalyptic number.

44685945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

44685945 is a deficient number, since it is larger than the sum of its proper divisors (39433095).

44685945 is a wasteful number, since it uses less digits than its factorization.

44685945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19502 (or 19496 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 44685945 is about 6684.7546701431. The cubic root of 44685945 is about 354.8599460759.

The spelling of 44685945 in words is "forty-four million, six hundred eighty-five thousand, nine hundred forty-five".