3940069 has 16 divisors (see below), whose sum is σ = 4734976. Its totient is φ = 3207600.

The previous prime is 3940063. The next prime is 3940091. The reversal of 3940069 is 9600493.

It is a cyclic number.

It is not a de Polignac number, because 3940069 - 2¹⁹ = 3415781 is a prime.

It is a super-2 number, since 2×3940069² = 31048287449522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3940069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14404 + ... + 14674.

It is an arithmetic number, because the mean of its divisors is an integer number (295936).

Almost surely, 2^3940069 is an apocalyptic number.

It is an amenable number.

3940069 is a deficient number, since it is larger than the sum of its proper divisors (794907).

3940069 is a wasteful number, since it uses less digits than its factorization.

3940069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 3940069 is about 1984.9607049007. The cubic root of 3940069 is about 157.9433247564.

The spelling of 3940069 in words is "three million, nine hundred forty thousand, sixty-nine".