3940545 has 16 divisors (see below), whose sum is σ = 7205760. Its totient is φ = 1801344.

The previous prime is 3940523. The next prime is 3940553. The reversal of 3940545 is 5450493.

It is not a de Polignac number, because 3940545 - 2⁵ = 3940513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18660 + ... + 18869.

It is an arithmetic number, because the mean of its divisors is an integer number (450360).

Almost surely, 2^3940545 is an apocalyptic number.

3940545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3940545 is a deficient number, since it is larger than the sum of its proper divisors (3265215).

3940545 is a wasteful number, since it uses less digits than its factorization.

3940545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37544.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 3940545 is about 1985.0806028975. The cubic root of 3940545 is about 157.9496848815.

The spelling of 3940545 in words is "three million, nine hundred forty thousand, five hundred forty-five".