8642380 has 24 divisors (see below), whose sum is σ = 18204480. Its totient is φ = 3446400.

The previous prime is 8642329. The next prime is 8642383. The reversal of 8642380 is 832468.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8642383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11661 + ... + 12379.

It is an arithmetic number, because the mean of its divisors is an integer number (758520).

Almost surely, 2^8642380 is an apocalyptic number.

It is an amenable number.

8642380 is an abundant number, since it is smaller than the sum of its proper divisors (9562100).

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

8642380 is a wasteful number, since it uses less digits than its factorization.

8642380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329 (or 1327 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 8642380 is about 2939.7925096850. The cubic root of 8642380 is about 205.2159532731.

The spelling of 8642380 in words is "eight million, six hundred forty-two thousand, three hundred eighty".