3973118420 has 48 divisors (see below), whose sum is σ = 8512393680. Its totient is φ = 1557405696.

The previous prime is 3973118411. The next prime is 3973118473. The reversal of 3973118420 is 248113793.

It can be written as a sum of positive squares in 8 ways, for example, as 1552675216 + 2420443204 = 39404^2 + 49198^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191264 + ... + 211016.

It is an arithmetic number, because the mean of its divisors is an integer number (177341535).

Almost surely, 2^3973118420 is an apocalyptic number.

It is an amenable number.

3973118420 is an abundant number, since it is smaller than the sum of its proper divisors (4539275260).

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

3973118420 is a wasteful number, since it uses less digits than its factorization.

3973118420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19964 (or 19962 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 3973118420 is about 63032.6773983146. The cubic root of 3973118420 is about 1583.8370688491.

The spelling of 3973118420 in words is "three billion, nine hundred seventy-three million, one hundred eighteen thousand, four hundred twenty".