3945306 has 16 divisors (see below), whose sum is σ = 7933824. Its totient is φ = 1307904.

The previous prime is 3945301. The next prime is 3945313. The reversal of 3945306 is 6035493.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3945301) 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, 546 + ... + 2861.

It is an arithmetic number, because the mean of its divisors is an integer number (495864).

Almost surely, 2^3945306 is an apocalyptic number.

3945306 is an abundant number, since it is smaller than the sum of its proper divisors (3988518).

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

3945306 is a wasteful number, since it uses less digits than its factorization.

3945306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3605.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 3945306 is about 1986.2794365345. The cubic root of 3945306 is about 158.0132713309.

The spelling of 3945306 in words is "three million, nine hundred forty-five thousand, three hundred six".