7225394 has 24 divisors (see below), whose sum is σ = 12105660. Its totient is φ = 3231360.

The previous prime is 7225373. The next prime is 7225403. The reversal of 7225394 is 4935227.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6682225 + 543169 = 2585^2 + 737^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7225394.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17462 + ... + 17870.

Almost surely, 2^7225394 is an apocalyptic number.

7225394 is a deficient number, since it is larger than the sum of its proper divisors (4880266).

7225394 is a wasteful number, since it uses less digits than its factorization.

7225394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 495 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 7225394 is about 2688.0093005791. The cubic root of 7225394 is about 193.3246257143.

It can be divided in two parts, 722 and 5394, that added together give a palindrome (6116).

The spelling of 7225394 in words is "seven million, two hundred twenty-five thousand, three hundred ninety-four".