1780068 has 12 divisors (see below), whose sum is σ = 4153520. Its totient is φ = 593352.

The previous prime is 1780067. The next prime is 1780069. The reversal of 1780068 is 8600871.

It is an interprime number because it is at equal distance from previous prime (1780067) and next prime (1780069).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1780061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74158 + ... + 74181.

2^1780068 is an apocalyptic number.

It is an amenable number.

1780068 is an abundant number, since it is smaller than the sum of its proper divisors (2373452).

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

1780068 is a wasteful number, since it uses less digits than its factorization.

1780068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148346 (or 148344 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 1780068 is about 1334.1918902467. The cubic root of 1780068 is about 121.1933706577.

The spelling of 1780068 in words is "one million, seven hundred eighty thousand, sixty-eight".