1563480 has 96 divisors (see below), whose sum is σ = 5250960. Its totient is φ = 403200.

The previous prime is 1563469. The next prime is 1563481. The reversal of 1563480 is 843651.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15430 + ... + 15530.

2^1563480 is an apocalyptic number.

1563480 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 1563480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2625480).

1563480 is an abundant number, since it is smaller than the sum of its proper divisors (3687480).

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

1563480 is a wasteful number, since it uses less digits than its factorization.

1563480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1563480 is about 1250.3919385537. The cubic root of 1563480 is about 116.0639758078.

The spelling of 1563480 in words is "one million, five hundred sixty-three thousand, four hundred eighty".