3973975380 has 72 divisors (see below), whose sum is σ = 12380207112. Its totient is φ = 1031083776.

The previous prime is 3973975373. The next prime is 3973975427. The reversal of 3973975380 is 835793793.

It is a happy number.

3973975380 is a `hidden beast` number, since 39 + 73 + 9 + 7 + 538 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 503822916 + 3470152464 = 22446^2 + 58908^2 .

It is a super-2 number, since 2×3973975380² = 31584960641692288800, 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 (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291687 + ... + 305006.

It is an arithmetic number, because the mean of its divisors is an integer number (171947321).

Almost surely, 2^3973975380 is an apocalyptic number.

3973975380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3973975380 is an abundant number, since it is smaller than the sum of its proper divisors (8406231732).

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

3973975380 is a wasteful number, since it uses less digits than its factorization.

3973975380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596745 (or 596740 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The square root of 3973975380 is about 63039.4747757308. The cubic root of 3973975380 is about 1583.9509330148.

The spelling of 3973975380 in words is "three billion, nine hundred seventy-three million, nine hundred seventy-five thousand, three hundred eighty".