1904130188 has 12 divisors (see below), whose sum is σ = 3349675392. Its totient is φ = 947080080.

The previous prime is 1904130161. The next prime is 1904130199. The reversal of 1904130188 is 8810314091.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1245395 + ... + 1246922.

It is an arithmetic number, because the mean of its divisors is an integer number (279139616).

Almost surely, 2^1904130188 is an apocalyptic number.

It is an amenable number.

1904130188 is a deficient number, since it is larger than the sum of its proper divisors (1445545204).

1904130188 is a wasteful number, since it uses less digits than its factorization.

1904130188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492512 (or 2492510 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 1904130188 is about 43636.3402223422. The cubic root of 1904130188 is about 1239.4591354340.

The spelling of 1904130188 in words is "one billion, nine hundred four million, one hundred thirty thousand, one hundred eighty-eight".