1604462441 has 2 divisors, whose sum is σ = 1604462442. Its totient is φ = 1604462440.

The previous prime is 1604462393. The next prime is 1604462491. The reversal of 1604462441 is 1442644061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1489651216 + 114811225 = 38596^2 + 10715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1604462441 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1604462398 and 1604462407.

It is not a weakly prime, because it can be changed into another prime (1604462491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802231220 + 802231221.

It is an arithmetic number, because the mean of its divisors is an integer number (802231221).

Almost surely, 2^1604462441 is an apocalyptic number.

It is an amenable number.

1604462441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604462441 is an equidigital number, since it uses as much as digits as its factorization.

1604462441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 1604462441 is about 40055.7416733232. The cubic root of 1604462441 is about 1170.6934406818.

The spelling of 1604462441 in words is "one billion, six hundred four million, four hundred sixty-two thousand, four hundred forty-one".