8456442 has 8 divisors (see below), whose sum is σ = 16912896. Its totient is φ = 2818812.

The previous prime is 8456419. The next prime is 8456467. The reversal of 8456442 is 2446548.

It is a sphenic number, since it is the product of 3 distinct primes.

8456442 is an admirable number.

It is a super-2 number, since 2×8456442² = 143022822598728, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704698 + ... + 704709.

It is an arithmetic number, because the mean of its divisors is an integer number (2114112).

Almost surely, 2^8456442 is an apocalyptic number.

8456442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8456442 is a wasteful number, since it uses less digits than its factorization.

8456442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409412.

The product of its digits is 30720, while the sum is 33.

The square root of 8456442 is about 2907.9962173290. The cubic root of 8456442 is about 203.7335525635.

The spelling of 8456442 in words is "eight million, four hundred fifty-six thousand, four hundred forty-two".