3945100 has 18 divisors (see below), whose sum is σ = 8561084. Its totient is φ = 1578000.

The previous prime is 3945079. The next prime is 3945101. The reversal of 3945100 is 15493.

It is not an unprimeable number, because it can be changed into a prime (3945101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19626 + ... + 19825.

Almost surely, 2^3945100 is an apocalyptic number.

It is an amenable number.

3945100 is an abundant number, since it is smaller than the sum of its proper divisors (4615984).

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

3945100 is a wasteful number, since it uses less digits than its factorization.

3945100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39465 (or 39458 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 3945100 is about 1986.2275801126. The cubic root of 3945100 is about 158.0105211175.

The spelling of 3945100 in words is "three million, nine hundred forty-five thousand, one hundred".