5131446240 has 48 divisors (see below), whose sum is σ = 16164057168. Its totient is φ = 1368385536.

The previous prime is 5131446233. The next prime is 5131446253. The reversal of 5131446240 is 426441315.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 5131446198 and 5131446207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5344777 + ... + 5345736.

It is an arithmetic number, because the mean of its divisors is an integer number (336751191).

Almost surely, 2^5131446240 is an apocalyptic number.

It is an amenable number.

5131446240 is an abundant number, since it is smaller than the sum of its proper divisors (11032610928).

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

5131446240 is a wasteful number, since it uses less digits than its factorization.

5131446240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10690531 (or 10690523 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 5131446240 is about 71634.1136610205. The cubic root of 5131446240 is about 1724.8311802861.

Adding to 5131446240 its reverse (426441315), we get a palindrome (5557887555).

The spelling of 5131446240 in words is "five billion, one hundred thirty-one million, four hundred forty-six thousand, two hundred forty".