8404287228 has 36 divisors (see below), whose sum is σ = 21264869808. Its totient is φ = 2798699520.

The previous prime is 8404287223. The next prime is 8404287247. The reversal of 8404287228 is 8227824048.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8404287223) 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, 76101 + ... + 150332.

It is an arithmetic number, because the mean of its divisors is an integer number (590690828).

Almost surely, 2^8404287228 is an apocalyptic number.

It is an amenable number.

8404287228 is an abundant number, since it is smaller than the sum of its proper divisors (12860582580).

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

8404287228 is a wasteful number, since it uses less digits than its factorization.

8404287228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227474 (or 227469 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 45.

The square root of 8404287228 is about 91674.8996617940. The cubic root of 8404287228 is about 2033.1384899625.

The spelling of 8404287228 in words is "eight billion, four hundred four million, two hundred eighty-seven thousand, two hundred twenty-eight".