4440278493 has 28 divisors (see below), whose sum is σ = 7608434208. Its totient is φ = 2537299080.

The previous prime is 4440278483. The next prime is 4440278519. The reversal of 4440278493 is 3948720444.

It is not a de Polignac number, because 4440278493 - 2⁶ = 4440278429 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440278483) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 429963 + ... + 440168.

Almost surely, 2^4440278493 is an apocalyptic number.

It is an amenable number.

4440278493 is a deficient number, since it is larger than the sum of its proper divisors (3168155715).

4440278493 is an frugal number, since it uses more digits than its factorization.

4440278493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870156 (or 870141 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The square root of 4440278493 is about 66635.4147056953. The cubic root of 4440278493 is about 1643.6275163101.

The spelling of 4440278493 in words is "four billion, four hundred forty million, two hundred seventy-eight thousand, four hundred ninety-three".