1880345 has 8 divisors (see below), whose sum is σ = 2280264. Its totient is φ = 1488384.

The previous prime is 1880341. The next prime is 1880357. The reversal of 1880345 is 5430881.

It can be written as a sum of positive squares in 4 ways, for example, as 52441 + 1827904 = 229^2 + 1352^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1880345 - 2² = 1880341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1880341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1454 + ... + 2423.

It is an arithmetic number, because the mean of its divisors is an integer number (285033).

2^1880345 is an apocalyptic number.

It is an amenable number.

1880345 is a deficient number, since it is larger than the sum of its proper divisors (399919).

1880345 is an equidigital number, since it uses as much as digits as its factorization.

1880345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1880345 is about 1371.2567228641. The cubic root of 1880345 is about 123.4276650285.

The spelling of 1880345 in words is "one million, eight hundred eighty thousand, three hundred forty-five".