1992425906 has 8 divisors (see below), whose sum is σ = 2988899244. Its totient is φ = 996126160.

The previous prime is 1992425849. The next prime is 1992425951. The reversal of 1992425906 is 6095242991.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1513910281 + 478515625 = 38909^2 + 21875^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 9365 + ... + 63816.

Almost surely, 2^1992425906 is an apocalyptic number.

1992425906 is a deficient number, since it is larger than the sum of its proper divisors (996473338).

1992425906 is a wasteful number, since it uses less digits than its factorization.

1992425906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86796.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 1992425906 is about 44636.5982798869. The cubic root of 1992425906 is about 1258.3285778670.

The spelling of 1992425906 in words is "one billion, nine hundred ninety-two million, four hundred twenty-five thousand, nine hundred six".