1973395992 has 32 divisors (see below), whose sum is σ = 4936322880. Its totient is φ = 657420960.

The previous prime is 1973395981. The next prime is 1973395997. The reversal of 1973395992 is 2995933791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973395997) 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, 20763 + ... + 66165.

It is an arithmetic number, because the mean of its divisors is an integer number (154260090).

Almost surely, 2^1973395992 is an apocalyptic number.

1973395992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1973395992 is an abundant number, since it is smaller than the sum of its proper divisors (2962926888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1973395992 is a wasteful number, since it uses less digits than its factorization.

1973395992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47223 (or 47219 counting only the distinct ones).

The product of its digits is 4133430, while the sum is 57.

The square root of 1973395992 is about 44422.9219210083. The cubic root of 1973395992 is about 1254.3096030750.

The spelling of 1973395992 in words is "one billion, nine hundred seventy-three million, three hundred ninety-five thousand, nine hundred ninety-two".