1880361 has 16 divisors (see below), whose sum is σ = 3184000. Its totient is φ = 1074384.

The previous prime is 1880357. The next prime is 1880363. The reversal of 1880361 is 1630881.

It is not a de Polignac number, because 1880361 - 2² = 1880357 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1880363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4786 + ... + 5163.

It is an arithmetic number, because the mean of its divisors is an integer number (199000).

2^1880361 is an apocalyptic number.

It is an amenable number.

1880361 is a deficient number, since it is larger than the sum of its proper divisors (1303639).

1880361 is an equidigital number, since it uses as much as digits as its factorization.

1880361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9965 (or 9959 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1880361 is about 1371.2625569161. The cubic root of 1880361 is about 123.4280151127.

The spelling of 1880361 in words is "one million, eight hundred eighty thousand, three hundred sixty-one".