8402212 has 48 divisors (see below), whose sum is σ = 18571392. Its totient is φ = 3237120.

The previous prime is 8402197. The next prime is 8402221. The reversal of 8402212 is 2122048.

It is a self number, because there is not a number n which added to its sum of digits gives 8402212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14643 + ... + 15205.

It is an arithmetic number, because the mean of its divisors is an integer number (386904).

Almost surely, 2^8402212 is an apocalyptic number.

8402212 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8402212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9285696).

8402212 is an abundant number, since it is smaller than the sum of its proper divisors (10169180).

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

8402212 is a wasteful number, since it uses less digits than its factorization.

8402212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 8402212 is about 2898.6569303731. The cubic root of 8402212 is about 203.2971131997.

The spelling of 8402212 in words is "eight million, four hundred two thousand, two hundred twelve".