3957140445 has 8 divisors (see below), whose sum is σ = 6331424736. Its totient is φ = 2110474896.

The previous prime is 3957140441. The next prime is 3957140477. The reversal of 3957140445 is 5440417593.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3957140445 - 2² = 3957140441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3957140397 and 3957140406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957140441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131904667 + ... + 131904696.

It is an arithmetic number, because the mean of its divisors is an integer number (791428092).

Almost surely, 2^3957140445 is an apocalyptic number.

It is an amenable number.

3957140445 is a deficient number, since it is larger than the sum of its proper divisors (2374284291).

3957140445 is a wasteful number, since it uses less digits than its factorization.

3957140445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263809371.

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 3957140445 is about 62905.8061310719. The cubic root of 3957140445 is about 1581.7110722599.

The spelling of 3957140445 in words is "three billion, nine hundred fifty-seven million, one hundred forty thousand, four hundred forty-five".