7742241 has 12 divisors (see below), whose sum is σ = 12043668. Its totient is φ = 4764384.

The previous prime is 7742239. The next prime is 7742299. The reversal of 7742241 is 1422477.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 772641 + 6969600 = 879^2 + 2640^2 .

It is not a de Polignac number, because 7742241 - 2¹ = 7742239 is a prime.

7742241 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7742221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32970 + ... + 33203.

It is an arithmetic number, because the mean of its divisors is an integer number (1003639).

Almost surely, 2^7742241 is an apocalyptic number.

It is an amenable number.

7742241 is a deficient number, since it is larger than the sum of its proper divisors (4301427).

7742241 is a wasteful number, since it uses less digits than its factorization.

7742241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66192 (or 66189 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 7742241 is about 2782.4882749079. The cubic root of 7742241 is about 197.8285169679.

The spelling of 7742241 in words is "seven million, seven hundred forty-two thousand, two hundred forty-one".