8454642 has 32 divisors (see below), whose sum is σ = 19740672. Its totient is φ = 2363664.

The previous prime is 8454637. The next prime is 8454653. The reversal of 8454642 is 2464548.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168 + ... + 4115.

It is an arithmetic number, because the mean of its divisors is an integer number (616896).

Almost surely, 2^8454642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8454642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9870336).

8454642 is an abundant number, since it is smaller than the sum of its proper divisors (11286030).

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

8454642 is a wasteful number, since it uses less digits than its factorization.

8454642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342.

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

The square root of 8454642 is about 2907.6867093963. The cubic root of 8454642 is about 203.7190962702.

The spelling of 8454642 in words is "eight million, four hundred fifty-four thousand, six hundred forty-two".