1056780 has 96 divisors (see below), whose sum is σ = 3494400. Its totient is φ = 264384.

The previous prime is 1056779. The next prime is 1056793. The reversal of 1056780 is 876501.

It is a super-2 number, since 2×1056780² = 2233567936800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10209 + ... + 10311.

It is an arithmetic number, because the mean of its divisors is an integer number (36400).

2^1056780 is an apocalyptic number.

1056780 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 1056780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1747200).

1056780 is an abundant number, since it is smaller than the sum of its proper divisors (2437620).

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

1056780 is a wasteful number, since it uses less digits than its factorization.

1056780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 1056780 is about 1027.9980544729. The cubic root of 1056780 is about 101.8579337089.

The spelling of 1056780 in words is "one million, fifty-six thousand, seven hundred eighty".