4388906 has 16 divisors (see below), whose sum is σ = 6969024. Its totient is φ = 2068704.

The previous prime is 4388897. The next prime is 4388911. The reversal of 4388906 is 6098834.

It is a self number, because there is not a number n which added to its sum of digits gives 4388906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2705 + ... + 4011.

It is an arithmetic number, because the mean of its divisors is an integer number (435564).

Almost surely, 2^4388906 is an apocalyptic number.

4388906 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4388906 is a deficient number, since it is larger than the sum of its proper divisors (2580118).

4388906 is a wasteful number, since it uses less digits than its factorization.

4388906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 4388906 is about 2094.9715988528. The cubic root of 4388906 is about 163.7264177527.

Subtracting from 4388906 its product of nonzero digits (41472), we obtain a palindrome (4347434).

The spelling of 4388906 in words is "four million, three hundred eighty-eight thousand, nine hundred six".