1999941425 has 48 divisors (see below), whose sum is σ = 2769525120. Its totient is φ = 1425600000.

The previous prime is 1999941373. The next prime is 1999941451. The reversal of 1999941425 is 5241499991.

It is not a de Polignac number, because 1999941425 - 2³⁰ = 926199601 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 664925 + ... + 667925.

It is an arithmetic number, because the mean of its divisors is an integer number (57698440).

Almost surely, 2^1999941425 is an apocalyptic number.

It is an amenable number.

1999941425 is a deficient number, since it is larger than the sum of its proper divisors (769583695).

1999941425 is a wasteful number, since it uses less digits than its factorization.

1999941425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114 (or 3109 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 53.

The square root of 1999941425 is about 44720.7046567918. The cubic root of 1999941425 is about 1259.9087497955.

The spelling of 1999941425 in words is "one billion, nine hundred ninety-nine million, nine hundred forty-one thousand, four hundred twenty-five".