1940998667 has 2 divisors, whose sum is σ = 1940998668. Its totient is φ = 1940998666.

The previous prime is 1940998603. The next prime is 1940998699. The reversal of 1940998667 is 7668990491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1940998667 - 2⁶ = 1940998603 is a prime.

It is not a weakly prime, because it can be changed into another prime (1940998967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970499333 + 970499334.

It is an arithmetic number, because the mean of its divisors is an integer number (970499334).

Almost surely, 2^1940998667 is an apocalyptic number.

1940998667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940998667 is an equidigital number, since it uses as much as digits as its factorization.

1940998667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5878656, while the sum is 59.

The square root of 1940998667 is about 44056.7664156143. The cubic root of 1940998667 is about 1247.4076765638.

The spelling of 1940998667 in words is "one billion, nine hundred forty million, nine hundred ninety-eight thousand, six hundred sixty-seven".