8406238 has 4 divisors (see below), whose sum is σ = 12609360. Its totient is φ = 4203118.

The previous prime is 8406221. The next prime is 8406253. The reversal of 8406238 is 8326048.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2101558 + ... + 2101561.

It is an arithmetic number, because the mean of its divisors is an integer number (3152340).

Almost surely, 2^8406238 is an apocalyptic number.

8406238 is a deficient number, since it is larger than the sum of its proper divisors (4203122).

8406238 is a wasteful number, since it uses less digits than its factorization.

8406238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4203121.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 8406238 is about 2899.3513067581. The cubic root of 8406238 is about 203.3295785983.

It can be divided in two parts, 84062 and 38, that added together give a square (84100 = 290²).

The spelling of 8406238 in words is "eight million, four hundred six thousand, two hundred thirty-eight".