7240245 has 8 divisors (see below), whose sum is σ = 11584416. Its totient is φ = 3861456.

The previous prime is 7240243. The next prime is 7240253. The reversal of 7240245 is 5420427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7240245 - 2¹ = 7240243 is a prime.

It is a super-2 number, since 2×7240245² = 104842295320050, which contains 22 as substring.

It is a Curzon number.

7240245 is a lucky number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7240241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241327 + ... + 241356.

It is an arithmetic number, because the mean of its divisors is an integer number (1448052).

Almost surely, 2^7240245 is an apocalyptic number.

It is an amenable number.

7240245 is a deficient number, since it is larger than the sum of its proper divisors (4344171).

7240245 is a wasteful number, since it uses less digits than its factorization.

7240245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482691.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 7240245 is about 2690.7703357961. The cubic root of 7240245 is about 193.4569875485.

The spelling of 7240245 in words is "seven million, two hundred forty thousand, two hundred forty-five".