4008418 has 4 divisors (see below), whose sum is σ = 6012630. Its totient is φ = 2004208.

The previous prime is 4008397. The next prime is 4008421. The reversal of 4008418 is 8148004.

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., 3485689 + 522729 = 1867^2 + 723^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4008392 and 4008401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002103 + ... + 1002106.

Almost surely, 2^4008418 is an apocalyptic number.

4008418 is a deficient number, since it is larger than the sum of its proper divisors (2004212).

4008418 is a wasteful number, since it uses less digits than its factorization.

4008418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004211.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 4008418 is about 2002.1033939335. The cubic root of 4008418 is about 158.8513833555.

The spelling of 4008418 in words is "four million, eight thousand, four hundred eighteen".