7240258217 has 4 divisors (see below), whose sum is σ = 7246141056. Its totient is φ = 7234375380.

The previous prime is 7240258211. The next prime is 7240258229. The reversal of 7240258217 is 7128520427.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7240258217 - 2⁸ = 7240257961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7240258211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2939573 + ... + 2942034.

It is an arithmetic number, because the mean of its divisors is an integer number (1811535264).

Almost surely, 2^7240258217 is an apocalyptic number.

It is an amenable number.

7240258217 is a deficient number, since it is larger than the sum of its proper divisors (5882839).

7240258217 is a wasteful number, since it uses less digits than its factorization.

7240258217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882838.

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 7240258217 is about 85089.7068804447. The cubic root of 7240258217 is about 1934.5710526641.

The spelling of 7240258217 in words is "seven billion, two hundred forty million, two hundred fifty-eight thousand, two hundred seventeen".