1066380 has 48 divisors (see below), whose sum is σ = 3413760. Its totient is φ = 243648.

The previous prime is 1066379. The next prime is 1066399. The reversal of 1066380 is 836601.

It is a super-2 number, since 2×1066380² = 2274332608800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066380.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850 + ... + 1689.

It is an arithmetic number, because the mean of its divisors is an integer number (71120).

2^1066380 is an apocalyptic number.

1066380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066380 is an abundant number, since it is smaller than the sum of its proper divisors (2347380).

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

1066380 is a wasteful number, since it uses less digits than its factorization.

1066380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558 (or 2556 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1066380 is about 1032.6567677597. The cubic root of 1066380 is about 102.1654370253.

The spelling of 1066380 in words is "one million, sixty-six thousand, three hundred eighty".