3945750 has 32 divisors (see below), whose sum is σ = 9850464. Its totient is φ = 1052000.

The previous prime is 3945731. The next prime is 3945757. The reversal of 3945750 is 575493.

3945750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3945757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1881 + ... + 3380.

It is an arithmetic number, because the mean of its divisors is an integer number (307827).

Almost surely, 2^3945750 is an apocalyptic number.

3945750 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3945750 is an abundant number, since it is smaller than the sum of its proper divisors (5904714).

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

3945750 is a wasteful number, since it uses less digits than its factorization.

3945750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5281 (or 5271 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 3945750 is about 1986.3912001416. The cubic root of 3945750 is about 158.0191986498.

The spelling of 3945750 in words is "three million, nine hundred forty-five thousand, seven hundred fifty".