3973528380 has 48 divisors (see below), whose sum is σ = 11509535520. Its totient is φ = 1023068928.

The previous prime is 3973528357. The next prime is 3973528393. The reversal of 3973528380 is 838253793.

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, 1140079 + ... + 1143558.

It is an arithmetic number, because the mean of its divisors is an integer number (239781990).

Almost surely, 2^3973528380 is an apocalyptic number.

3973528380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3973528380 is an abundant number, since it is smaller than the sum of its proper divisors (7536007140).

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

3973528380 is a wasteful number, since it uses less digits than its factorization.

3973528380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283678 (or 2283676 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 3973528380 is about 63035.9292784678. The cubic root of 3973528380 is about 1583.8915422245.

The spelling of 3973528380 in words is "three billion, nine hundred seventy-three million, five hundred twenty-eight thousand, three hundred eighty".