7442381 has 2 divisors, whose sum is σ = 7442382. Its totient is φ = 7442380.

The previous prime is 7442377. The next prime is 7442399. The reversal of 7442381 is 1832447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7070281 + 372100 = 2659^2 + 610^2 .

It is a cyclic number.

It is not a de Polignac number, because 7442381 - 2² = 7442377 is a prime.

It is a super-2 number, since 2×7442381² = 110778069898322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7442341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3721190 + 3721191.

It is an arithmetic number, because the mean of its divisors is an integer number (3721191).

Almost surely, 2^7442381 is an apocalyptic number.

It is an amenable number.

7442381 is a deficient number, since it is larger than the sum of its proper divisors (1).

7442381 is an equidigital number, since it uses as much as digits as its factorization.

7442381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 29.

The square root of 7442381 is about 2728.0727629592. The cubic root of 7442381 is about 195.2408245287.

It can be divided in two parts, 744 and 2381, that added together give a 5-th power (3125 = 5⁵).

The spelling of 7442381 in words is "seven million, four hundred forty-two thousand, three hundred eighty-one".