3906224 has 20 divisors (see below), whose sum is σ = 8649744. Its totient is φ = 1674048.

The previous prime is 3906187. The next prime is 3906247. The reversal of 3906224 is 4226093.

It is a junction number, because it is equal to n+sod(n) for n = 3906193 and 3906202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17327 + ... + 17550.

Almost surely, 2^3906224 is an apocalyptic number.

It is an amenable number.

3906224 is an abundant number, since it is smaller than the sum of its proper divisors (4743520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3906224 is a wasteful number, since it uses less digits than its factorization.

3906224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34892 (or 34886 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 3906224 is about 1976.4169600568. The cubic root of 3906224 is about 157.4897818180.

The spelling of 3906224 in words is "three million, nine hundred six thousand, two hundred twenty-four".