3957202980 has 144 divisors (see below), whose sum is σ = 12369927024. Its totient is φ = 1023528960.

The previous prime is 3957202967. The next prime is 3957202981. The reversal of 3957202980 is 892027593.

It can be written as a sum of positive squares in 8 ways, for example, as 522305316 + 3434897664 = 22854^2 + 58608^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (3957202981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 799072 + ... + 804008.

It is an arithmetic number, because the mean of its divisors is an integer number (85902271).

Almost surely, 2^3957202980 is an apocalyptic number.

3957202980 is a gapful number since it is divisible by the number (30) 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 3957202980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6184963512).

3957202980 is an abundant number, since it is smaller than the sum of its proper divisors (8412724044).

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

3957202980 is a wasteful number, since it uses less digits than its factorization.

3957202980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086 (or 5081 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 3957202980 is about 62906.3031817957. The cubic root of 3957202980 is about 1581.7194041839.

The spelling of 3957202980 in words is "three billion, nine hundred fifty-seven million, two hundred two thousand, nine hundred eighty".