8670042 has 48 divisors (see below), whose sum is σ = 20049120. Its totient is φ = 2700000.

The previous prime is 8670041. The next prime is 8670071. The reversal of 8670042 is 2400768.

It is a junction number, because it is equal to n+sod(n) for n = 8669988 and 8670015.

It is not an unprimeable number, because it can be changed into a prime (8670041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34417 + ... + 34667.

It is an arithmetic number, because the mean of its divisors is an integer number (417690).

Almost surely, 2^8670042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8670042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10024560).

8670042 is an abundant number, since it is smaller than the sum of its proper divisors (11379078).

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

8670042 is a wasteful number, since it uses less digits than its factorization.

8670042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 8670042 is about 2944.4935048324. The cubic root of 8670042 is about 205.4346676364.

The spelling of 8670042 in words is "eight million, six hundred seventy thousand, forty-two".