1405430441 has 2 divisors, whose sum is σ = 1405430442. Its totient is φ = 1405430440.

The previous prime is 1405430407. The next prime is 1405430473. The reversal of 1405430441 is 1440345041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 829670416 + 575760025 = 28804^2 + 23995^2 .

It is an emirp because it is prime and its reverse (1440345041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1405430441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1405430441.

It is not a weakly prime, because it can be changed into another prime (1405430401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702715220 + 702715221.

It is an arithmetic number, because the mean of its divisors is an integer number (702715221).

Almost surely, 2^1405430441 is an apocalyptic number.

It is an amenable number.

1405430441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405430441 is an equidigital number, since it uses as much as digits as its factorization.

1405430441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1405430441 is about 37489.0709540794. The cubic root of 1405430441 is about 1120.1334983834.

Adding to 1405430441 its reverse (1440345041), we get a palindrome (2845775482).

The spelling of 1405430441 in words is "one billion, four hundred five million, four hundred thirty thousand, four hundred forty-one".