1870042128 has 20 divisors (see below), whose sum is σ = 4830942288. Its totient is φ = 623347360.

The previous prime is 1870042127. The next prime is 1870042133. The reversal of 1870042128 is 8212400781.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1870042121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19479558 + ... + 19479653.

Almost surely, 2^1870042128 is an apocalyptic number.

It is an amenable number.

1870042128 is an abundant number, since it is smaller than the sum of its proper divisors (2960900160).

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

1870042128 is a wasteful number, since it uses less digits than its factorization.

1870042128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38959222 (or 38959216 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 1870042128 is about 43243.9837202818. The cubic root of 1870042128 is about 1232.0182187951.

The spelling of 1870042128 in words is "one billion, eight hundred seventy million, forty-two thousand, one hundred twenty-eight".