8400234 has 8 divisors (see below), whose sum is σ = 16800480. Its totient is φ = 2800076.

The previous prime is 8400233. The next prime is 8400247. The reversal of 8400234 is 4320048.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

8400234 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 8400234.

It is not an unprimeable number, because it can be changed into a prime (8400233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700014 + ... + 700025.

It is an arithmetic number, because the mean of its divisors is an integer number (2100060).

Almost surely, 2^8400234 is an apocalyptic number.

8400234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8400234 is a wasteful number, since it uses less digits than its factorization.

8400234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400044.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 8400234 is about 2898.3157177920. The cubic root of 8400234 is about 203.2811589387.

The spelling of 8400234 in words is "eight million, four hundred thousand, two hundred thirty-four".