3924418 has 4 divisors (see below), whose sum is σ = 5886630. Its totient is φ = 1962208.

The previous prime is 3924413. The next prime is 3924443. The reversal of 3924418 is 8144293.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2093809 + 1830609 = 1447^2 + 1353^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 3924418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3924413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 981103 + ... + 981106.

Almost surely, 2^3924418 is an apocalyptic number.

3924418 is a deficient number, since it is larger than the sum of its proper divisors (1962212).

3924418 is a wasteful number, since it uses less digits than its factorization.

3924418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962211.

The product of its digits is 6912, while the sum is 31.

The square root of 3924418 is about 1981.0143866212. The cubic root of 3924418 is about 157.7339162979.

It can be divided in two parts, 392 and 4418, that multiplied together give a square (1731856 = 1316²).

The spelling of 3924418 in words is "three million, nine hundred twenty-four thousand, four hundred eighteen".