4390541 has 2 divisors, whose sum is σ = 4390542. Its totient is φ = 4390540.

The previous prime is 4390523. The next prime is 4390553. The reversal of 4390541 is 1450934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3822025 + 568516 = 1955^2 + 754^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4390541 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4390541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4392541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2195270 + 2195271.

It is an arithmetic number, because the mean of its divisors is an integer number (2195271).

Almost surely, 2^4390541 is an apocalyptic number.

It is an amenable number.

4390541 is a deficient number, since it is larger than the sum of its proper divisors (1).

4390541 is an equidigital number, since it uses as much as digits as its factorization.

4390541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 4390541 is about 2095.3617826046. The cubic root of 4390541 is about 163.7467462400.

The spelling of 4390541 in words is "four million, three hundred ninety thousand, five hundred forty-one".