8642340 has 144 divisors (see below), whose sum is σ = 31624320. Its totient is φ = 1871424.

The previous prime is 8642329. The next prime is 8642383. The reversal of 8642340 is 432468.

8642340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 454851 + ... + 454869.

Almost surely, 2^8642340 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 8642340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15812160).

8642340 is an abundant number, since it is smaller than the sum of its proper divisors (22981980).

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

8642340 is a wasteful number, since it uses less digits than its factorization.

8642340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 8642340 is about 2939.7857064759. The cubic root of 8642340 is about 205.2156366685.

The spelling of 8642340 in words is "eight million, six hundred forty-two thousand, three hundred forty".