7261224 has 16 divisors (see below), whose sum is σ = 18153120. Its totient is φ = 2420400.

The previous prime is 7261207. The next prime is 7261231. The reversal of 7261224 is 4221627.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 302551 = 7261224 / (7 + 2 + 6 + 1 + 2 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 7261194 and 7261203.

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 3 ways as a sum of consecutive naturals, for example, 151252 + ... + 151299.

It is an arithmetic number, because the mean of its divisors is an integer number (1134570).

Almost surely, 2^7261224 is an apocalyptic number.

It is an amenable number.

7261224 is an abundant number, since it is smaller than the sum of its proper divisors (10891896).

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

7261224 is a wasteful number, since it uses less digits than its factorization.

7261224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302560 (or 302556 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 7261224 is about 2694.6658419923. The cubic root of 7261224 is about 193.6436580502.

The spelling of 7261224 in words is "seven million, two hundred sixty-one thousand, two hundred twenty-four".