44320749 has 16 divisors (see below), whose sum is σ = 67860480. Its totient is φ = 25446960.

The previous prime is 44320739. The next prime is 44320763. The reversal of 44320749 is 94702344.

It is not a de Polignac number, because 44320749 - 2¹⁵ = 44287981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44320739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34717 + ... + 35970.

It is an arithmetic number, because the mean of its divisors is an integer number (4241280).

Almost surely, 2^44320749 is an apocalyptic number.

It is an amenable number.

44320749 is a deficient number, since it is larger than the sum of its proper divisors (23539731).

44320749 is a wasteful number, since it uses less digits than its factorization.

44320749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70720.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 44320749 is about 6657.3830444102. The cubic root of 44320749 is about 353.8906026672.

The spelling of 44320749 in words is "forty-four million, three hundred twenty thousand, seven hundred forty-nine".