1930493401 has 2 divisors, whose sum is σ = 1930493402. Its totient is φ = 1930493400.

The previous prime is 1930493399. The next prime is 1930493417. The reversal of 1930493401 is 1043940391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1498851225 + 431642176 = 38715^2 + 20776^2 .

It is a cyclic number.

It is not a de Polignac number, because 1930493401 - 2¹ = 1930493399 is a prime.

Together with 1930493399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1930493491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965246700 + 965246701.

It is an arithmetic number, because the mean of its divisors is an integer number (965246701).

Almost surely, 2^1930493401 is an apocalyptic number.

It is an amenable number.

1930493401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1930493401 is an equidigital number, since it uses as much as digits as its factorization.

1930493401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 1930493401 is about 43937.3804521844. The cubic root of 1930493401 is about 1245.1531563222.

The spelling of 1930493401 in words is "one billion, nine hundred thirty million, four hundred ninety-three thousand, four hundred one".