1880489916 has 18 divisors (see below), whose sum is σ = 4753460712. Its totient is φ = 626829960.

The previous prime is 1880489911. The next prime is 1880489953. The reversal of 1880489916 is 6199840881.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1880489911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26117880 + ... + 26117951.

Almost surely, 2^1880489916 is an apocalyptic number.

It is an amenable number.

1880489916 is an abundant number, since it is smaller than the sum of its proper divisors (2872970796).

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

1880489916 is a wasteful number, since it uses less digits than its factorization.

1880489916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52235841 (or 52235836 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 54.

The square root of 1880489916 is about 43364.6159443388. The cubic root of 1880489916 is about 1234.3083575588.

The spelling of 1880489916 in words is "one billion, eight hundred eighty million, four hundred eighty-nine thousand, nine hundred sixteen".