7522736 has 40 divisors (see below), whose sum is σ = 15988560. Its totient is φ = 3407616.

The previous prime is 7522643. The next prime is 7522741. The reversal of 7522736 is 6372257.

It is a happy number.

It is a d-powerful number, because it can be written as 7⁷ + 5⁴ + 2¹⁰ + 2²² + 7⁷ + 3⁴ + 6⁸ .

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11966 + ... + 12578.

It is an arithmetic number, because the mean of its divisors is an integer number (399714).

Almost surely, 2^7522736 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 7522736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7994280).

7522736 is an abundant number, since it is smaller than the sum of its proper divisors (8465824).

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

7522736 is a wasteful number, since it uses less digits than its factorization.

7522736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 687 counting only the distinct ones).

The product of its digits is 17640, while the sum is 32.

The square root of 7522736 is about 2742.7606530647. The cubic root of 7522736 is about 195.9409790358.

The spelling of 7522736 in words is "seven million, five hundred twenty-two thousand, seven hundred thirty-six".