1556480 has 60 divisors (see below), whose sum is σ = 3932040. Its totient is φ = 589824.

The previous prime is 1556473. The next prime is 1556491. The reversal of 1556480 is 846551.

It is a happy number.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81911 + ... + 81929.

It is an arithmetic number, because the mean of its divisors is an integer number (65534).

2^1556480 is an apocalyptic number.

1556480 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 1556480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1966020).

1556480 is an abundant number, since it is smaller than the sum of its proper divisors (2375560).

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

1556480 is an frugal number, since it uses more digits than its factorization.

1556480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52 (or 26 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1556480 is about 1247.5896761355. The cubic root of 1556480 is about 115.8905030951.

The spelling of 1556480 in words is "one million, five hundred fifty-six thousand, four hundred eighty".