8421150 has 48 divisors (see below), whose sum is σ = 21570048. Its totient is φ = 2172000.

The previous prime is 8421143. The next prime is 8421167. The reversal of 8421150 is 511248.

8421150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3745 + ... + 5555.

It is an arithmetic number, because the mean of its divisors is an integer number (449376).

Almost surely, 2^8421150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8421150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10785024).

8421150 is an abundant number, since it is smaller than the sum of its proper divisors (13148898).

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

8421150 is a wasteful number, since it uses less digits than its factorization.

8421150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857 (or 1852 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 8421150 is about 2901.9217770298. The cubic root of 8421150 is about 203.4497377614.

Adding to 8421150 its reverse (511248), we get a palindrome (8932398).

The spelling of 8421150 in words is "eight million, four hundred twenty-one thousand, one hundred fifty".