7264538 has 4 divisors (see below), whose sum is σ = 10896810. Its totient is φ = 3632268.

The previous prime is 7264531. The next prime is 7264553. The reversal of 7264538 is 8354627.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8354627 = 569 ⋅14683.

It can be written as a sum of positive squares in only one way, i.e., 7198489 + 66049 = 2683^2 + 257^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7264498 and 7264507.

It is not an unprimeable number, because it can be changed into a prime (7264531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1816133 + ... + 1816136.

Almost surely, 2^7264538 is an apocalyptic number.

7264538 is a deficient number, since it is larger than the sum of its proper divisors (3632272).

7264538 is a wasteful number, since it uses less digits than its factorization.

7264538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632271.

The product of its digits is 40320, while the sum is 35.

The square root of 7264538 is about 2695.2806903920. The cubic root of 7264538 is about 193.6731130236.

The spelling of 7264538 in words is "seven million, two hundred sixty-four thousand, five hundred thirty-eight".