4004421461 has 2 divisors, whose sum is σ = 4004421462. Its totient is φ = 4004421460.

The previous prime is 4004421439. The next prime is 4004421467. The reversal of 4004421461 is 1641244004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3002382436 + 1002039025 = 54794^2 + 31655^2 .

It is a cyclic number.

It is not a de Polignac number, because 4004421461 - 2²² = 4000227157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4004421461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4004421467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2002210730 + 2002210731.

It is an arithmetic number, because the mean of its divisors is an integer number (2002210731).

Almost surely, 2^4004421461 is an apocalyptic number.

It is an amenable number.

4004421461 is a deficient number, since it is larger than the sum of its proper divisors (1).

4004421461 is an equidigital number, since it uses as much as digits as its factorization.

4004421461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 4004421461 is about 63280.4982676338. The cubic root of 4004421461 is about 1587.9857225831.

Adding to 4004421461 its reverse (1641244004), we get a palindrome (5645665465).

The spelling of 4004421461 in words is "four billion, four million, four hundred twenty-one thousand, four hundred sixty-one".