8442636 has 24 divisors (see below), whose sum is σ = 19785024. Its totient is φ = 2802000.

The previous prime is 8442607. The next prime is 8442641. The reversal of 8442636 is 6362448.

It is a junction number, because it is equal to n+sod(n) for n = 8442597 and 8442606.

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, 1611 + ... + 4413.

It is an arithmetic number, because the mean of its divisors is an integer number (824376).

Almost surely, 2^8442636 is an apocalyptic number.

It is an amenable number.

8442636 is an abundant number, since it is smaller than the sum of its proper divisors (11342388).

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

8442636 is a wasteful number, since it uses less digits than its factorization.

8442636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061 (or 3059 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 8442636 is about 2905.6214481587. The cubic root of 8442636 is about 203.6226202701.

The spelling of 8442636 in words is "eight million, four hundred forty-two thousand, six hundred thirty-six".