2204728541 has 4 divisors (see below), whose sum is σ = 2204826492. Its totient is φ = 2204630592.

The previous prime is 2204728531. The next prime is 2204728543. The reversal of 2204728541 is 1458274022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1458274022 = 2 ⋅729137011.

It can be written as a sum of positive squares in 2 ways, for example, as 886312441 + 1318416100 = 29771^2 + 36310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2204728541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204728543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3605 + ... + 66501.

It is an arithmetic number, because the mean of its divisors is an integer number (551206623).

Almost surely, 2^2204728541 is an apocalyptic number.

It is an amenable number.

2204728541 is a deficient number, since it is larger than the sum of its proper divisors (97951).

2204728541 is an equidigital number, since it uses as much as digits as its factorization.

2204728541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97950.

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 2204728541 is about 46954.5369586369. The cubic root of 2204728541 is about 1301.5225830886.

The spelling of 2204728541 in words is "two billion, two hundred four million, seven hundred twenty-eight thousand, five hundred forty-one".