1880605 has 8 divisors (see below), whose sum is σ = 2309472. Its totient is φ = 1469328.

The previous prime is 1880603. The next prime is 1880633. The reversal of 1880605 is 5060881.

It is a happy number.

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 1880605 - 2¹ = 1880603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1880603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4159 + ... + 4588.

It is an arithmetic number, because the mean of its divisors is an integer number (288684).

2^1880605 is an apocalyptic number.

It is an amenable number.

1880605 is a deficient number, since it is larger than the sum of its proper divisors (428867).

1880605 is an equidigital number, since it uses as much as digits as its factorization.

1880605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8795.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 1880605 is about 1371.3515231333. The cubic root of 1880605 is about 123.4333536502.

It can be divided in two parts, 1880 and 605, that added together give a triangular number (2485 = T₇₀).

The spelling of 1880605 in words is "one million, eight hundred eighty thousand, six hundred five".