8404120 has 48 divisors (see below), whose sum is σ = 20114640. Its totient is φ = 3159552.

The previous prime is 8404111. The next prime is 8404127. The reversal of 8404120 is 214048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8404127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11197 + ... + 11923.

It is an arithmetic number, because the mean of its divisors is an integer number (419055).

Almost surely, 2^8404120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8404120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10057320).

8404120 is an abundant number, since it is smaller than the sum of its proper divisors (11710520).

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

8404120 is a wasteful number, since it uses less digits than its factorization.

8404120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 751 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 8404120 is about 2898.9860296317. The cubic root of 8404120 is about 203.3125004784.

Adding to 8404120 its reverse (214048), we get a palindrome (8618168).

The spelling of 8404120 in words is "eight million, four hundred four thousand, one hundred twenty".