7242455 has 12 divisors (see below), whose sum is σ = 9553656. Its totient is φ = 5266800.

The previous prime is 7242451. The next prime is 7242457. The reversal of 7242455 is 5542427.

It is a happy number.

It is not a de Polignac number, because 7242455 - 2² = 7242451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7242451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5381 + ... + 6590.

It is an arithmetic number, because the mean of its divisors is an integer number (796138).

Almost surely, 2^7242455 is an apocalyptic number.

7242455 is a deficient number, since it is larger than the sum of its proper divisors (2311201).

7242455 is a wasteful number, since it uses less digits than its factorization.

7242455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11998 (or 11987 counting only the distinct ones).

The product of its digits is 11200, while the sum is 29.

The square root of 7242455 is about 2691.1809675308. The cubic root of 7242455 is about 193.4766690394.

The spelling of 7242455 in words is "seven million, two hundred forty-two thousand, four hundred fifty-five".