5321420240 has 40 divisors (see below), whose sum is σ = 13100087880. Its totient is φ = 2003357696.

The previous prime is 5321420219. The next prime is 5321420243. The reversal of 5321420240 is 420241235.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2651838016 + 2669582224 = 51496^2 + 51668^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5321420243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1955045 + ... + 1957764.

It is an arithmetic number, because the mean of its divisors is an integer number (327502197).

Almost surely, 2^5321420240 is an apocalyptic number.

It is an amenable number.

5321420240 is an abundant number, since it is smaller than the sum of its proper divisors (7778667640).

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

5321420240 is a wasteful number, since it uses less digits than its factorization.

5321420240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3912839 (or 3912833 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 5321420240 is about 72948.0653615982. The cubic root of 5321420240 is about 1745.8590789729.

Adding to 5321420240 its reverse (420241235), we get a palindrome (5741661475).

The spelling of 5321420240 in words is "five billion, three hundred twenty-one million, four hundred twenty thousand, two hundred forty".