44640286 has 8 divisors (see below), whose sum is σ = 69871824. Its totient is φ = 21349680.

The previous prime is 44640259. The next prime is 44640289. The reversal of 44640286 is 68204644.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44640289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485175 + ... + 485266.

It is an arithmetic number, because the mean of its divisors is an integer number (8733978).

Almost surely, 2^44640286 is an apocalyptic number.

44640286 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

44640286 is a deficient number, since it is larger than the sum of its proper divisors (25231538).

44640286 is a wasteful number, since it uses less digits than its factorization.

44640286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970466.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 44640286 is about 6681.3386383269. The cubic root of 44640286 is about 354.7390424983.

The spelling of 44640286 in words is "forty-four million, six hundred forty thousand, two hundred eighty-six".