1946409433 has 2 divisors, whose sum is σ = 1946409434. Its totient is φ = 1946409432.

The previous prime is 1946409427. The next prime is 1946409529. The reversal of 1946409433 is 3349046491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1408726089 + 537683344 = 37533^2 + 23188^2 .

It is a cyclic number.

It is not a de Polignac number, because 1946409433 - 2⁵ = 1946409401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1946409433.

It is not a weakly prime, because it can be changed into another prime (1946409133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973204716 + 973204717.

It is an arithmetic number, because the mean of its divisors is an integer number (973204717).

Almost surely, 2^1946409433 is an apocalyptic number.

It is an amenable number.

1946409433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1946409433 is an equidigital number, since it uses as much as digits as its factorization.

1946409433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 43.

The square root of 1946409433 is about 44118.1304340970. The cubic root of 1946409433 is about 1248.5657005642.

The spelling of 1946409433 in words is "one billion, nine hundred forty-six million, four hundred nine thousand, four hundred thirty-three".