4312620 has 144 divisors (see below), whose sum is σ = 14982240. Its totient is φ = 995328.

The previous prime is 4312571. The next prime is 4312631. The reversal of 4312620 is 262134.

It is a happy number.

4312620 is a `hidden beast` number, since 43 + 1 + 2 + 620 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 4312593 and 4312602.

It is a congruent number.

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, 44412 + ... + 44508.

Almost surely, 2^4312620 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 4312620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7491120).

4312620 is an abundant number, since it is smaller than the sum of its proper divisors (10669620).

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

4312620 is a wasteful number, since it uses less digits than its factorization.

4312620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4312620 is about 2076.6848581333. The cubic root of 4312620 is about 162.7722615319.

Adding to 4312620 its reverse (262134), we get a palindrome (4574754).

The spelling of 4312620 in words is "four million, three hundred twelve thousand, six hundred twenty".