4128440493 has 16 divisors (see below), whose sum is σ = 5698946880. Its totient is φ = 2655265536.

The previous prime is 4128440489. The next prime is 4128440513. The reversal of 4128440493 is 3940448214.

It is not a de Polignac number, because 4128440493 - 2² = 4128440489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128440483) 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, 94546 + ... + 131132.

It is an arithmetic number, because the mean of its divisors is an integer number (356184180).

Almost surely, 2^4128440493 is an apocalyptic number.

It is an amenable number.

4128440493 is a deficient number, since it is larger than the sum of its proper divisors (1570506387).

4128440493 is a wasteful number, since it uses less digits than its factorization.

4128440493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37916.

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 4128440493 is about 64252.9415124319. The cubic root of 4128440493 is about 1604.2129198563.

The spelling of 4128440493 in words is "four billion, one hundred twenty-eight million, four hundred forty thousand, four hundred ninety-three".