1948422993 has 16 divisors (see below), whose sum is σ = 2840666112. Its totient is φ = 1178114000.

The previous prime is 1948422979. The next prime is 1948423003. The reversal of 1948422993 is 3992248491.

It is a cyclic number.

It is not a de Polignac number, because 1948422993 - 2⁸ = 1948422737 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1948422793) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 54273 + ... + 82718.

It is an arithmetic number, because the mean of its divisors is an integer number (177541632).

Almost surely, 2^1948422993 is an apocalyptic number.

It is an amenable number.

1948422993 is a deficient number, since it is larger than the sum of its proper divisors (892243119).

1948422993 is a wasteful number, since it uses less digits than its factorization.

1948422993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137436.

The product of its digits is 1119744, while the sum is 51.

The square root of 1948422993 is about 44140.9446319401. The cubic root of 1948422993 is about 1248.9960991356.

The spelling of 1948422993 in words is "one billion, nine hundred forty-eight million, four hundred twenty-two thousand, nine hundred ninety-three".