3973698040 has 128 divisors (see below), whose sum is σ = 10170800640. Its totient is φ = 1386164736.

The previous prime is 3973698013. The next prime is 3973698101. The reversal of 3973698040 is 408963793.

It is a super-2 number, since 2×3973698040² = 31580552226199683200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 990679 + ... + 994681.

It is an arithmetic number, because the mean of its divisors is an integer number (79459380).

Almost surely, 2^3973698040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3973698040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5085400320).

3973698040 is an abundant number, since it is smaller than the sum of its proper divisors (6197102600).

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

3973698040 is a wasteful number, since it uses less digits than its factorization.

3973698040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4133 (or 4129 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 3973698040 is about 63037.2750045558. The cubic root of 3973698040 is about 1583.9140846762.

The spelling of 3973698040 in words is "three billion, nine hundred seventy-three million, six hundred ninety-eight thousand, forty".