1992425905 has 8 divisors (see below), whose sum is σ = 2394853632. Its totient is φ = 1591312368.

The previous prime is 1992425849. The next prime is 1992425951. The reversal of 1992425905 is 5095242991.

1992425905 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1992425905 - 2⁷ = 1992425777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325207 + ... + 331276.

It is an arithmetic number, because the mean of its divisors is an integer number (299356704).

Almost surely, 2^1992425905 is an apocalyptic number.

It is an amenable number.

1992425905 is a deficient number, since it is larger than the sum of its proper divisors (402427727).

1992425905 is an equidigital number, since it uses as much as digits as its factorization.

1992425905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657095.

The product of its (nonzero) digits is 291600, while the sum is 46.

The square root of 1992425905 is about 44636.5982686853. The cubic root of 1992425905 is about 1258.3285776565.

The spelling of 1992425905 in words is "one billion, nine hundred ninety-two million, four hundred twenty-five thousand, nine hundred five".