5245321440 has 96 divisors (see below), whose sum is σ = 17494716960. Its totient is φ = 1316470784.

The previous prime is 5245321439. The next prime is 5245321481. The reversal of 5245321440 is 441235425.

It is a tau number, because it is divible by the number of its divisors (96).

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 = 5245321398 and 5245321407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313245 + ... + 329564.

It is an arithmetic number, because the mean of its divisors is an integer number (182236635).

Almost surely, 2^5245321440 is an apocalyptic number.

It is an amenable number.

5245321440 is an abundant number, since it is smaller than the sum of its proper divisors (12249395520).

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

5245321440 is a wasteful number, since it uses less digits than its factorization.

5245321440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642844 (or 642836 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 5245321440 is about 72424.5914037490. The cubic root of 5245321440 is about 1737.4968896654.

Adding to 5245321440 its reverse (441235425), we get a palindrome (5686556865).

The spelling of 5245321440 in words is "five billion, two hundred forty-five million, three hundred twenty-one thousand, four hundred forty".