4006424 has 32 divisors (see below), whose sum is σ = 8067600. Its totient is φ = 1858560.

The previous prime is 4006423. The next prime is 4006451. The reversal of 4006424 is 4246004.

It is a junction number, because it is equal to n+sod(n) for n = 4006396 and 4006405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4006423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11939 + ... + 12269.

Almost surely, 2^4006424 is an apocalyptic number.

It is an amenable number.

4006424 is an abundant number, since it is smaller than the sum of its proper divisors (4061176).

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

4006424 is a wasteful number, since it uses less digits than its factorization.

4006424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4006424 is about 2001.6053557083. The cubic root of 4006424 is about 158.8250386150.

The spelling of 4006424 in words is "four million, six thousand, four hundred twenty-four".