1973966080 has 72 divisors (see below), whose sum is σ = 4765888512. Its totient is φ = 783304704.

The previous prime is 1973966051. The next prime is 1973966081. The reversal of 1973966080 is 806693791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973966081) 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, 156489 + ... + 168631.

It is an arithmetic number, because the mean of its divisors is an integer number (66192896).

Almost surely, 2^1973966080 is an apocalyptic number.

1973966080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1973966080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2382944256).

1973966080 is an abundant number, since it is smaller than the sum of its proper divisors (2791922432).

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

1973966080 is a wasteful number, since it uses less digits than its factorization.

1973966080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12291 (or 12277 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 1973966080 is about 44429.3380549384. The cubic root of 1973966080 is about 1254.4303759304.

The spelling of 1973966080 in words is "one billion, nine hundred seventy-three million, nine hundred sixty-six thousand, eighty".