1071880 has 32 divisors (see below), whose sum is σ = 2442240. Its totient is φ = 423360.

The previous prime is 1071871. The next prime is 1071899. The reversal of 1071880 is 881701.

It is a super-2 number, since 2×1071880² = 2297853468800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 4975 + ... + 5185.

It is an arithmetic number, because the mean of its divisors is an integer number (76320).

2^1071880 is an apocalyptic number.

1071880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1071880 is an abundant number, since it is smaller than the sum of its proper divisors (1370360).

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

1071880 is a wasteful number, since it uses less digits than its factorization.

1071880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 1071880 is about 1035.3163767661. The cubic root of 1071880 is about 102.3407799674.

The spelling of 1071880 in words is "one million, seventy-one thousand, eight hundred eighty".