1563330 has 48 divisors (see below), whose sum is σ = 3969792. Its totient is φ = 393600.

The previous prime is 1563329. The next prime is 1563389. The reversal of 1563330 is 333651.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1563297 and 1563306.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38110 + ... + 38150.

It is an arithmetic number, because the mean of its divisors is an integer number (82704).

2^1563330 is an apocalyptic number.

1563330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1563330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1984896).

1563330 is an abundant number, since it is smaller than the sum of its proper divisors (2406462).

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

1563330 is a wasteful number, since it uses less digits than its factorization.

1563330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 1563330 is about 1250.3319559221. The cubic root of 1563330 is about 116.0602639698.

Adding to 1563330 its reverse (333651), we get a palindrome (1896981).

It can be divided in two parts, 156 and 3330, that added together give a triangular number (3486 = T₈₃).

The spelling of 1563330 in words is "one million, five hundred sixty-three thousand, three hundred thirty".