5440638278 has 8 divisors (see below), whose sum is σ = 8161298760. Its totient is φ = 2720205360.

The previous prime is 5440638271. The next prime is 5440638283. The reversal of 5440638278 is 8728360445.

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 (5440638271) by changing a digit.

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, 28538 + ... + 108146.

It is an arithmetic number, because the mean of its divisors is an integer number (1020162345).

Almost surely, 2^5440638278 is an apocalyptic number.

5440638278 is a deficient number, since it is larger than the sum of its proper divisors (2720660482).

5440638278 is a wasteful number, since it uses less digits than its factorization.

5440638278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113782.

The product of its (nonzero) digits is 1290240, while the sum is 47.

The square root of 5440638278 is about 73760.6824670163. The cubic root of 5440638278 is about 1758.8006504784.

The spelling of 5440638278 in words is "five billion, four hundred forty million, six hundred thirty-eight thousand, two hundred seventy-eight".