1929463906 has 4 divisors (see below), whose sum is σ = 2894195862. Its totient is φ = 964731952.

The previous prime is 1929463871. The next prime is 1929463933. The reversal of 1929463906 is 6093649291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1926771025 + 2692881 = 43895^2 + 1641^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1929463906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482365975 + ... + 482365978.

Almost surely, 2^1929463906 is an apocalyptic number.

1929463906 is a deficient number, since it is larger than the sum of its proper divisors (964731956).

1929463906 is an equidigital number, since it uses as much as digits as its factorization.

1929463906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964731955.

The product of its (nonzero) digits is 629856, while the sum is 49.

The square root of 1929463906 is about 43925.6634099020. The cubic root of 1929463906 is about 1244.9317782223.

The spelling of 1929463906 in words is "one billion, nine hundred twenty-nine million, four hundred sixty-three thousand, nine hundred six".