4427640838 has 8 divisors (see below), whose sum is σ = 6683764032. Its totient is φ = 2199719496.

The previous prime is 4427640827. The next prime is 4427640887. The reversal of 4427640838 is 8380467244.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7050070 + ... + 7050697.

It is an arithmetic number, because the mean of its divisors is an integer number (835470504).

Almost surely, 2^4427640838 is an apocalyptic number.

4427640838 is a deficient number, since it is larger than the sum of its proper divisors (2256123194).

4427640838 is a wasteful number, since it uses less digits than its factorization.

4427640838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14100926.

The product of its (nonzero) digits is 1032192, while the sum is 46.

The square root of 4427640838 is about 66540.5202714857. The cubic root of 4427640838 is about 1642.0667031731.

The spelling of 4427640838 in words is "four billion, four hundred twenty-seven million, six hundred forty thousand, eight hundred thirty-eight".