7522432 has 32 divisors (see below), whose sum is σ = 15872220. Its totient is φ = 3538944.

The previous prime is 7522409. The next prime is 7522439. The reversal of 7522432 is 2342257.

It can be written as a sum of positive squares in 2 ways, for example, as 7268416 + 254016 = 2696^2 + 504^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 7522397 and 7522406.

It is not an unprimeable number, because it can be changed into a prime (7522439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448 + ... + 3904.

Almost surely, 2^7522432 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 7522432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7936110).

7522432 is an abundant number, since it is smaller than the sum of its proper divisors (8349788).

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

7522432 is a wasteful number, since it uses less digits than its factorization.

7522432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3488 (or 3476 counting only the distinct ones).

The product of its digits is 3360, while the sum is 25.

The square root of 7522432 is about 2742.7052338886. The cubic root of 7522432 is about 195.9383396211.

Adding to 7522432 its reverse (2342257), we get a palindrome (9864689).

The spelling of 7522432 in words is "seven million, five hundred twenty-two thousand, four hundred thirty-two".