7243641 has 8 divisors (see below), whose sum is σ = 10731360. Its totient is φ = 4829076.

The previous prime is 7243631. The next prime is 7243667. The reversal of 7243641 is 1463427.

It is not a de Polignac number, because 7243641 - 2⁹ = 7243129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 268283 = 7243641 / (7 + 2 + 4 + 3 + 6 + 4 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7243631) 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, 134115 + ... + 134168.

It is an arithmetic number, because the mean of its divisors is an integer number (1341420).

Almost surely, 2^7243641 is an apocalyptic number.

It is an amenable number.

7243641 is a deficient number, since it is larger than the sum of its proper divisors (3487719).

7243641 is a wasteful number, since it uses less digits than its factorization.

7243641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268292 (or 268286 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 7243641 is about 2691.4013078692. The cubic root of 7243641 is about 193.4872294919.

The spelling of 7243641 in words is "seven million, two hundred forty-three thousand, six hundred forty-one".