1940230361 has 2 divisors, whose sum is σ = 1940230362. Its totient is φ = 1940230360.

The previous prime is 1940230339. The next prime is 1940230367. The reversal of 1940230361 is 1630320491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1261315225 + 678915136 = 35515^2 + 26056^2 .

It is a cyclic number.

It is not a de Polignac number, because 1940230361 - 2²² = 1936036057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1940230367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970115180 + 970115181.

It is an arithmetic number, because the mean of its divisors is an integer number (970115181).

Almost surely, 2^1940230361 is an apocalyptic number.

It is an amenable number.

1940230361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940230361 is an equidigital number, since it uses as much as digits as its factorization.

1940230361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1940230361 is about 44048.0460520101. The cubic root of 1940230361 is about 1247.2430676093.

The spelling of 1940230361 in words is "one billion, nine hundred forty million, two hundred thirty thousand, three hundred sixty-one".