7240225 has 12 divisors (see below), whose sum is σ = 9106560. Its totient is φ = 5709200.

The previous prime is 7240201. The next prime is 7240241. The reversal of 7240225 is 5220427.

It is not a de Polignac number, because 7240225 - 2⁷ = 7240097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7240196 and 7240205.

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, 265 + ... + 3814.

It is an arithmetic number, because the mean of its divisors is an integer number (758880).

Almost surely, 2^7240225 is an apocalyptic number.

It is an amenable number.

7240225 is a deficient number, since it is larger than the sum of its proper divisors (1866335).

7240225 is a wasteful number, since it uses less digits than its factorization.

7240225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160 (or 4155 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 7240225 is about 2690.7666193856. The cubic root of 7240225 is about 193.4568094172.

It can be divided in two parts, 72402 and 25, that added together give a palindrome (72427).

The spelling of 7240225 in words is "seven million, two hundred forty thousand, two hundred twenty-five".