7381449 has 10 divisors (see below), whose sum is σ = 11026730. Its totient is φ = 4920912.

The previous prime is 7381447. The next prime is 7381453. The reversal of 7381449 is 9441837.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6215049 + 1166400 = 2493^2 + 1080^2 .

It is not a de Polignac number, because 7381449 - 2¹ = 7381447 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (7381447) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 45484 + ... + 45645.

It is an arithmetic number, because the mean of its divisors is an integer number (1102673).

Almost surely, 2^7381449 is an apocalyptic number.

It is an amenable number.

7381449 is a deficient number, since it is larger than the sum of its proper divisors (3645281).

7381449 is an equidigital number, since it uses as much as digits as its factorization.

7381449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91141 (or 91132 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 7381449 is about 2716.8822204873. The cubic root of 7381449 is about 194.7065408379.

It can be divided in two parts, 738 and 1449, that added together give a 7-th power (2187 = 3⁷).

The spelling of 7381449 in words is "seven million, three hundred eighty-one thousand, four hundred forty-nine".