8409456 has 60 divisors (see below), whose sum is σ = 25679160. Its totient is φ = 2547840.

The previous prime is 8409439. The next prime is 8409473. The reversal of 8409456 is 6549048.

It is an interprime number because it is at equal distance from previous prime (8409439) and next prime (8409473).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 8409456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1071 + ... + 4238.

It is an arithmetic number, because the mean of its divisors is an integer number (427986).

Almost surely, 2^8409456 is an apocalyptic number.

It is an amenable number.

8409456 is an abundant number, since it is smaller than the sum of its proper divisors (17269704).

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

8409456 is a wasteful number, since it uses less digits than its factorization.

8409456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5334 (or 5325 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 8409456 is about 2899.9062053798. The cubic root of 8409456 is about 203.3555208850.

It can be divided in two parts, 840 and 9456, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 8409456 in words is "eight million, four hundred nine thousand, four hundred fifty-six".