7224526 has 4 divisors (see below), whose sum is σ = 10836792. Its totient is φ = 3612262.

The previous prime is 7224521. The next prime is 7224551. The reversal of 7224526 is 6254227.

It is a semiprime because it is the product of two primes.

It is a d-powerful number, because it can be written as 7⁸ + 2³ + 2¹⁴ + 4⁶ + 5⁸ + 2²⁰ + 6² .

It is a junction number, because it is equal to n+sod(n) for n = 7224494 and 7224503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7224521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1806130 + ... + 1806133.

It is an arithmetic number, because the mean of its divisors is an integer number (2709198).

Almost surely, 2^7224526 is an apocalyptic number.

7224526 is a deficient number, since it is larger than the sum of its proper divisors (3612266).

7224526 is a wasteful number, since it uses less digits than its factorization.

7224526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612265.

The product of its digits is 6720, while the sum is 28.

The square root of 7224526 is about 2687.8478379551. The cubic root of 7224526 is about 193.3168839222.

Subtracting from 7224526 its reverse (6254227), we obtain a cube (970299 = 99³).

It can be divided in two parts, 7224 and 526, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 7224526 in words is "seven million, two hundred twenty-four thousand, five hundred twenty-six".