1936440001 has 2 divisors, whose sum is σ = 1936440002. Its totient is φ = 1936440000.

The previous prime is 1936439977. The next prime is 1936440007. The reversal of 1936440001 is 1000446391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1279850625 + 656589376 = 35775^2 + 25624^2 .

It is a cyclic number.

It is not a de Polignac number, because 1936440001 - 2⁹ = 1936439489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1936440007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968220000 + 968220001.

It is an arithmetic number, because the mean of its divisors is an integer number (968220001).

Almost surely, 2^1936440001 is an apocalyptic number.

It is an amenable number.

1936440001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1936440001 is an equidigital number, since it uses as much as digits as its factorization.

1936440001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1936440001 is about 44004.9997273037. Note that the first 3 decimals coincide. The cubic root of 1936440001 is about 1246.4303493256.

Adding to 1936440001 its reverse (1000446391), we get a palindrome (2936886392).

The spelling of 1936440001 in words is "one billion, nine hundred thirty-six million, four hundred forty thousand, one".