1623360 has 112 divisors (see below), whose sum is σ = 5486400. Its totient is φ = 405504.

The previous prime is 1623319. The next prime is 1623361. The reversal of 1623360 is 633261.

It is a nialpdrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623361) by changing a digit.

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, 18196 + ... + 18284.

2^1623360 is an apocalyptic number.

1623360 is a gapful number since it is divisible by the number (10) 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 1623360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2743200).

1623360 is an abundant number, since it is smaller than the sum of its proper divisors (3863040).

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

1623360 is a wasteful number, since it uses less digits than its factorization.

1623360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1623360 is about 1274.1114550933. Note that the first 3 decimals coincide. The cubic root of 1623360 is about 117.5271704181.

Subtracting from 1623360 its reverse (633261), we obtain a palindrome (990099).

The spelling of 1623360 in words is "one million, six hundred twenty-three thousand, three hundred sixty".