1880389 has 16 divisors (see below), whose sum is σ = 2275200. Its totient is φ = 1520064.

The previous prime is 1880381. The next prime is 1880401. The reversal of 1880389 is 9830881.

It is not a de Polignac number, because 1880389 - 2³ = 1880381 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 (1880381) 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, 11899 + ... + 12055.

It is an arithmetic number, because the mean of its divisors is an integer number (142200).

2^1880389 is an apocalyptic number.

It is an amenable number.

1880389 is a deficient number, since it is larger than the sum of its proper divisors (394811).

1880389 is a wasteful number, since it uses less digits than its factorization.

1880389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 1880389 is about 1371.2727664473. The cubic root of 1880389 is about 123.4286277552.

The spelling of 1880389 in words is "one million, eight hundred eighty thousand, three hundred eighty-nine".