7240231 has 4 divisors (see below), whose sum is σ = 7416864. Its totient is φ = 7063600.

The previous prime is 7240201. The next prime is 7240241. The reversal of 7240231 is 1320427.

7240231 = 1096² + 1097² + ... + 1101².

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7240231 - 2⁹ = 7239719 is a prime.

It is a super-2 number, since 2×7240231² = 104841889866722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 7240199 and 7240208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7240201) 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, 88255 + ... + 88336.

It is an arithmetic number, because the mean of its divisors is an integer number (1854216).

Almost surely, 2^7240231 is an apocalyptic number.

7240231 is a deficient number, since it is larger than the sum of its proper divisors (176633).

7240231 is a wasteful number, since it uses less digits than its factorization.

7240231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176632.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 7240231 is about 2690.7677343093. The cubic root of 7240231 is about 193.4568628566.

Adding to 7240231 its reverse (1320427), we get a palindrome (8560658).

The spelling of 7240231 in words is "seven million, two hundred forty thousand, two hundred thirty-one".