1056720 has 160 divisors (see below), whose sum is σ = 4071168. Its totient is φ = 221184.

The previous prime is 1056719. The next prime is 1056721. The reversal of 1056720 is 276501.

1056720 is nontrivially palindromic in base 13.

It is an interprime number because it is at equal distance from previous prime (1056719) and next prime (1056721).

It is a super-2 number, since 2×1056720² = 2233314316800, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28542 + ... + 28578.

2^1056720 is an apocalyptic number.

1056720 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 1056720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2035584).

1056720 is an abundant number, since it is smaller than the sum of its proper divisors (3014448).

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

1056720 is a wasteful number, since it uses less digits than its factorization.

1056720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 71 counting only the distinct ones).

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

The square root of 1056720 is about 1027.9688711240. The cubic root of 1056720 is about 101.8560059687.

It can be divided in two parts, 105 and 6720, that multiplied together give a square (705600 = 840²).

The spelling of 1056720 in words is "one million, fifty-six thousand, seven hundred twenty".