8436428 has 96 divisors (see below), whose sum is σ = 20697600. Its totient is φ = 2963520.

The previous prime is 8436409. The next prime is 8436431. The reversal of 8436428 is 8246348.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196175 + ... + 196217.

It is an arithmetic number, because the mean of its divisors is an integer number (215600).

Almost surely, 2^8436428 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 8436428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10348800).

8436428 is an abundant number, since it is smaller than the sum of its proper divisors (12261172).

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

8436428 is a wasteful number, since it uses less digits than its factorization.

8436428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 76 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 8436428 is about 2904.5529776542. The cubic root of 8436428 is about 203.5726990848.

The spelling of 8436428 in words is "eight million, four hundred thirty-six thousand, four hundred twenty-eight".