44691945 has 8 divisors (see below), whose sum is σ = 71507136. Its totient is φ = 23835696.

The previous prime is 44691943. The next prime is 44691947. The reversal of 44691945 is 54919644.

It is an interprime number because it is at equal distance from previous prime (44691943) and next prime (44691947).

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

It is not a de Polignac number, because 44691945 - 2¹ = 44691943 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 44691897 and 44691906.

It is not an unprimeable number, because it can be changed into a prime (44691943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1489717 + ... + 1489746.

It is an arithmetic number, because the mean of its divisors is an integer number (8938392).

Almost surely, 2^44691945 is an apocalyptic number.

It is an amenable number.

44691945 is a deficient number, since it is larger than the sum of its proper divisors (26815191).

44691945 is a wasteful number, since it uses less digits than its factorization.

44691945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979471.

The product of its digits is 155520, while the sum is 42.

The square root of 44691945 is about 6685.2034374430. The cubic root of 44691945 is about 354.8758277616.

The spelling of 44691945 in words is "forty-four million, six hundred ninety-one thousand, nine hundred forty-five".