1973437420 has 24 divisors (see below), whose sum is σ = 4245298848. Its totient is φ = 770121600.

The previous prime is 1973437387. The next prime is 1973437423. The reversal of 1973437420 is 247343791.

It is not an unprimeable number, because it can be changed into a prime (1973437423) 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, 1202496 + ... + 1204135.

It is an arithmetic number, because the mean of its divisors is an integer number (176887452).

Almost surely, 2^1973437420 is an apocalyptic number.

1973437420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1973437420 is an abundant number, since it is smaller than the sum of its proper divisors (2271861428).

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

1973437420 is a wasteful number, since it uses less digits than its factorization.

1973437420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406681 (or 2406679 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 1973437420 is about 44423.3882093656. The cubic root of 1973437420 is about 1254.3183803596.

The spelling of 1973437420 in words is "one billion, nine hundred seventy-three million, four hundred thirty-seven thousand, four hundred twenty".