2623320 has 128 divisors (see below), whose sum is σ = 10022400. Its totient is φ = 597888.

The previous prime is 2623289. The next prime is 2623331. The reversal of 2623320 is 233262.

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 = 2623293 and 2623302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7387 + ... + 7733.

It is an arithmetic number, because the mean of its divisors is an integer number (78300).

2^2623320 is an apocalyptic number.

2623320 is a gapful number since it is divisible by the number (20) 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 2623320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5011200).

2623320 is an abundant number, since it is smaller than the sum of its proper divisors (7399080).

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

2623320 is a wasteful number, since it uses less digits than its factorization.

2623320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2623320 is about 1619.6666323661. Note that the first 4 decimals coincide. The cubic root of 2623320 is about 137.9167740142.

Adding to 2623320 its reverse (233262), we get a palindrome (2856582).

The spelling of 2623320 in words is "two million, six hundred twenty-three thousand, three hundred twenty".