1880904138 has 16 divisors (see below), whose sum is σ = 3767324256. Its totient is φ = 626048720.

The previous prime is 1880904119. The next prime is 1880904161. The reversal of 1880904138 is 8314090881.

It is a self number, because there is not a number n which added to its sum of digits gives 1880904138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225393 + ... + 233588.

It is an arithmetic number, because the mean of its divisors is an integer number (235457766).

Almost surely, 2^1880904138 is an apocalyptic number.

1880904138 is an abundant number, since it is smaller than the sum of its proper divisors (1886420118).

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

1880904138 is a wasteful number, since it uses less digits than its factorization.

1880904138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459669.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 1880904138 is about 43369.3917181230. The cubic root of 1880904138 is about 1234.3989793583.

The spelling of 1880904138 in words is "one billion, eight hundred eighty million, nine hundred four thousand, one hundred thirty-eight".