7522230240 has 768 divisors, whose sum is σ = 31660554240. Its totient is φ = 1652742144.

The previous prime is 7522230211. The next prime is 7522230251. The reversal of 7522230240 is 420322257.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 90629239 + ... + 90629321.

It is an arithmetic number, because the mean of its divisors is an integer number (41224680).

Almost surely, 2^7522230240 is an apocalyptic number.

7522230240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7522230240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15830277120).

7522230240 is an abundant number, since it is smaller than the sum of its proper divisors (24138324000).

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

7522230240 is an equidigital number, since it uses as much as digits as its factorization.

7522230240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 7522230240 is about 86730.7917639404. The cubic root of 7522230240 is about 1959.3658784402.

Adding to 7522230240 its reverse (420322257), we get a palindrome (7942552497).

The spelling of 7522230240 in words is "seven billion, five hundred twenty-two million, two hundred thirty thousand, two hundred forty".