5178440440 has 32 divisors (see below), whose sum is σ = 11653632000. Its totient is φ = 2070995584.

The previous prime is 5178440437. The next prime is 5178440447. The reversal of 5178440440 is 440448715.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5178440440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5178440447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329481 + ... + 344839.

It is an arithmetic number, because the mean of its divisors is an integer number (364176000).

Almost surely, 2^5178440440 is an apocalyptic number.

It is an amenable number.

5178440440 is an abundant number, since it is smaller than the sum of its proper divisors (6475191560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5178440440 is a wasteful number, since it uses less digits than its factorization.

5178440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23799 (or 23795 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 37.

The square root of 5178440440 is about 71961.3815876266. The cubic root of 5178440440 is about 1730.0805691591.

The spelling of 5178440440 in words is "five billion, one hundred seventy-eight million, four hundred forty thousand, four hundred forty".