7242745 has 8 divisors (see below), whose sum is σ = 8717184. Its totient is φ = 5776944.

The previous prime is 7242737. The next prime is 7242751. The reversal of 7242745 is 5472427.

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

It is a cyclic number.

It is not a de Polignac number, because 7242745 - 2³ = 7242737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139 + ... + 3808.

It is an arithmetic number, because the mean of its divisors is an integer number (1089648).

Almost surely, 2^7242745 is an apocalyptic number.

It is an amenable number.

7242745 is a deficient number, since it is larger than the sum of its proper divisors (1474439).

7242745 is a wasteful number, since it uses less digits than its factorization.

7242745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319.

The product of its digits is 15680, while the sum is 31.

The square root of 7242745 is about 2691.2348466828. The cubic root of 7242745 is about 193.4792513814.

The spelling of 7242745 in words is "seven million, two hundred forty-two thousand, seven hundred forty-five".