7281038241 has 45 divisors (see below), whose sum is σ = 11502245601. Its totient is φ = 4589334936.

The previous prime is 7281038227. The next prime is 7281038243. The reversal of 7281038241 is 1428301827.

The square root of 7281038241 is 85329.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 7281038241 - 2³¹ = 5133554593 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7281038196 and 7281038205.

It is not an unprimeable number, because it can be changed into a prime (7281038243) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 14591010 + ... + 14591508.

Almost surely, 2^7281038241 is an apocalyptic number.

7281038241 is the 85329-th square number.

7281038241 is the 42665-th centered octagonal number.

It is an amenable number.

7281038241 is a deficient number, since it is larger than the sum of its proper divisors (4221207360).

7281038241 is an frugal number, since it uses more digits than its factorization.

7281038241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The cubic root of 7281038241 is about 1938.1963468886.

Multiplying 7281038241 by its sum of digits (36), we get a square (262117376676 = 511974²).

The spelling of 7281038241 in words is "seven billion, two hundred eighty-one million, thirty-eight thousand, two hundred forty-one".