8420576 has 48 divisors (see below), whose sum is σ = 18343584. Its totient is φ = 3784704.

The previous prime is 8420569. The next prime is 8420597. The reversal of 8420576 is 6750248.

It is a super-2 number, since 2×8420576² = 141812200343552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12176 + ... + 12848.

It is an arithmetic number, because the mean of its divisors is an integer number (382158).

Almost surely, 2^8420576 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 8420576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9171792).

8420576 is an abundant number, since it is smaller than the sum of its proper divisors (9923008).

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

8420576 is a wasteful number, since it uses less digits than its factorization.

8420576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 8420576 is about 2901.8228753664. The cubic root of 8420576 is about 203.4451151622.

The spelling of 8420576 in words is "eight million, four hundred twenty thousand, five hundred seventy-six".