44444645 has 8 divisors (see below), whose sum is σ = 60952704. Its totient is φ = 30476304.

The previous prime is 44444639. The next prime is 44444677. The reversal of 44444645 is 54644444.

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

It is a cyclic number.

It is not a de Polignac number, because 44444645 - 2¹⁰ = 44443621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1269847 = 44444645 / (4 + 4 + 4 + 4 + 4 + 6 + 4 + 5).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634889 + ... + 634958.

It is an arithmetic number, because the mean of its divisors is an integer number (7619088).

Almost surely, 2^44444645 is an apocalyptic number.

It is an amenable number.

44444645 is a deficient number, since it is larger than the sum of its proper divisors (16508059).

44444645 is a wasteful number, since it uses less digits than its factorization.

44444645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269859.

The product of its digits is 122880, while the sum is 35.

The square root of 44444645 is about 6666.6817083164. The cubic root of 44444645 is about 354.2200558653.

The spelling of 44444645 in words is "forty-four million, four hundred forty-four thousand, six hundred forty-five".