7243201449 has 27 divisors (see below), whose sum is σ = 11504456509. Its totient is φ = 4388116920.

The previous prime is 7243201447. The next prime is 7243201477. The reversal of 7243201449 is 9441023427.

The square root of 7243201449 is 85107.

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

7243201449 is a `hidden beast` number, since 7 + 2 + 4 + 3 + 201 + 449 = 666.

It is not a de Polignac number, because 7243201449 - 2¹ = 7243201447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7243201447) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2807242 + ... + 2809820.

Almost surely, 2^7243201449 is an apocalyptic number.

7243201449 is the 85107-th square number.

7243201449 is the 42554-th centered octagonal number.

It is an amenable number.

7243201449 is a deficient number, since it is larger than the sum of its proper divisors (4261255060).

7243201449 is an equidigital number, since it uses as much as digits as its factorization.

7243201449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186 (or 2593 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The cubic root of 7243201449 is about 1934.8331574994.

Multiplying 7243201449 by its sum of digits (36), we get a square (260755252164 = 510642²).

The spelling of 7243201449 in words is "seven billion, two hundred forty-three million, two hundred one thousand, four hundred forty-nine".