3940915 has 16 divisors (see below), whose sum is σ = 5230080. Its totient is φ = 2826720.

The previous prime is 3940891. The next prime is 3940931. The reversal of 3940915 is 5190493.

It is not a de Polignac number, because 3940915 - 2¹³ = 3932723 is a prime.

It is a super-2 number, since 2×3940915² = 31061622074450, which contains 22 as substring.

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, 3892 + ... + 4798.

It is an arithmetic number, because the mean of its divisors is an integer number (326880).

Almost surely, 2^3940915 is an apocalyptic number.

3940915 is a deficient number, since it is larger than the sum of its proper divisors (1289165).

3940915 is a wasteful number, since it uses less digits than its factorization.

3940915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 3940915 is about 1985.1737959181. The cubic root of 3940915 is about 157.9546283224.

The spelling of 3940915 in words is "three million, nine hundred forty thousand, nine hundred fifteen".