1948922945 has 8 divisors (see below), whose sum is σ = 2339975400. Its totient is φ = 1558293120.

The previous prime is 1948922939. The next prime is 1948922947. The reversal of 1948922945 is 5492298491.

It can be written as a sum of positive squares in 4 ways, for example, as 325477681 + 1623445264 = 18041^2 + 40292^2 .

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

It is not a de Polignac number, because 1948922945 - 2¹² = 1948918849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1948922947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95420 + ... + 114029.

It is an arithmetic number, because the mean of its divisors is an integer number (292496925).

Almost surely, 2^1948922945 is an apocalyptic number.

It is an amenable number.

1948922945 is a deficient number, since it is larger than the sum of its proper divisors (391052455).

1948922945 is a wasteful number, since it uses less digits than its factorization.

1948922945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211315.

The product of its digits is 1866240, while the sum is 53.

The square root of 1948922945 is about 44146.6074007958. The cubic root of 1948922945 is about 1249.1029179490.

The spelling of 1948922945 in words is "one billion, nine hundred forty-eight million, nine hundred twenty-two thousand, nine hundred forty-five".