1560720 has 80 divisors (see below), whose sum is σ = 5535360. Its totient is φ = 356352.

The previous prime is 1560709. The next prime is 1560733. The reversal of 1560720 is 270651.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216 + ... + 2144.

It is an arithmetic number, because the mean of its divisors is an integer number (69192).

2^1560720 is an apocalyptic number.

1560720 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 1560720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2767680).

1560720 is an abundant number, since it is smaller than the sum of its proper divisors (3974640).

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

1560720 is a wasteful number, since it uses less digits than its factorization.

1560720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1560720 is about 1249.2877971068. The cubic root of 1560720 is about 115.9956399471.

The spelling of 1560720 in words is "one million, five hundred sixty thousand, seven hundred twenty".