4321008 has 60 divisors (see below), whose sum is σ = 12434968. Its totient is φ = 1399680.

The previous prime is 4321003. The next prime is 4321019. The reversal of 4321008 is 8001234.

It is a happy number.

It is a super-2 number, since 2×4321008² = 37342220272128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4321003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4923 + ... + 5733.

Almost surely, 2^4321008 is an apocalyptic number.

4321008 is a gapful number since it is divisible by the number (48) 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 4321008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6217484).

4321008 is an abundant number, since it is smaller than the sum of its proper divisors (8113960).

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

4321008 is a wasteful number, since it uses less digits than its factorization.

4321008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 4321008 is about 2078.7034420523. The cubic root of 4321008 is about 162.8777232928.

The spelling of 4321008 in words is "four million, three hundred twenty-one thousand, eight".