48128399 has 16 divisors (see below), whose sum is σ = 55240704. Its totient is φ = 41527200.

The previous prime is 48128369. The next prime is 48128401. The reversal of 48128399 is 99382184.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-48128399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48128359) 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, 16742 + ... + 19404.

It is an arithmetic number, because the mean of its divisors is an integer number (3452544).

Almost surely, 2^48128399 is an apocalyptic number.

48128399 is a deficient number, since it is larger than the sum of its proper divisors (7112305).

48128399 is a wasteful number, since it uses less digits than its factorization.

48128399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758.

The product of its digits is 124416, while the sum is 44.

The square root of 48128399 is about 6937.4634413451. The cubic root of 48128399 is about 363.7478807008.

The spelling of 48128399 in words is "forty-eight million, one hundred twenty-eight thousand, three hundred ninety-nine".