1887128338 has 8 divisors (see below), whose sum is σ = 2864797488. Its totient is φ = 932195844.

The previous prime is 1887128297. The next prime is 1887128351. The reversal of 1887128338 is 8338217881.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1887128338² = 7122506728165284488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1887128291 and 1887128300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5683956 + ... + 5684287.

It is an arithmetic number, because the mean of its divisors is an integer number (358099686).

Almost surely, 2^1887128338 is an apocalyptic number.

1887128338 is a deficient number, since it is larger than the sum of its proper divisors (977669150).

1887128338 is a wasteful number, since it uses less digits than its factorization.

1887128338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11368328.

The product of its digits is 516096, while the sum is 49.

The square root of 1887128338 is about 43441.0904329070. The cubic root of 1887128338 is about 1235.7590853159.

The spelling of 1887128338 in words is "one billion, eight hundred eighty-seven million, one hundred twenty-eight thousand, three hundred thirty-eight".