3940504 has 8 divisors (see below), whose sum is σ = 7388460. Its totient is φ = 1970248.

The previous prime is 3940499. The next prime is 3940507. The reversal of 3940504 is 4050493.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246274 + ... + 246289.

Almost surely, 2^3940504 is an apocalyptic number.

It is an amenable number.

3940504 is a deficient number, since it is larger than the sum of its proper divisors (3447956).

3940504 is a wasteful number, since it uses less digits than its factorization.

3940504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492569 (or 492565 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3940504 is about 1985.0702758341. The cubic root of 3940504 is about 157.9491370757.

Adding to 3940504 its reverse (4050493), we get a palindrome (7990997).

It can be divided in two parts, 394050 and 4, that multiplied together give a triangular number (1576200 = T₁₇₇₅).

The spelling of 3940504 in words is "three million, nine hundred forty thousand, five hundred four".