5142598440 has 128 divisors (see below), whose sum is σ = 17702737920. Its totient is φ = 1170720000.

The previous prime is 5142598421. The next prime is 5142598441. The reversal of 5142598440 is 448952415.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 5142598392 and 5142598401.

It is not an unprimeable number, because it can be changed into a prime (5142598441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198645 + ... + 223035.

It is an arithmetic number, because the mean of its divisors is an integer number (138302640).

Almost surely, 2^5142598440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5142598440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8851368960).

5142598440 is an abundant number, since it is smaller than the sum of its proper divisors (12560139480).

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

5142598440 is a wasteful number, since it uses less digits than its factorization.

5142598440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24663 (or 24659 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 5142598440 is about 71711.9128178854. The cubic root of 5142598440 is about 1726.0798045011.

The spelling of 5142598440 in words is "five billion, one hundred forty-two million, five hundred ninety-eight thousand, four hundred forty".