8920404 has 54 divisors (see below), whose sum is σ = 23302734. Its totient is φ = 2877120.

The previous prime is 8920403. The next prime is 8920423. The reversal of 8920404 is 4040298.

It can be written as a sum of positive squares in 3 ways, for example, as 2108304 + 6812100 = 1452^2 + 2610^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8920403) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49194 + ... + 49374.

Almost surely, 2^8920404 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 8920404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11651367).

8920404 is an abundant number, since it is smaller than the sum of its proper divisors (14382330).

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

8920404 is a wasteful number, since it uses less digits than its factorization.

8920404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 8920404 is about 2986.7045384504. The cubic root of 8920404 is about 207.3933569201.

The spelling of 8920404 in words is "eight million, nine hundred twenty thousand, four hundred four".