1916875038 has 32 divisors (see below), whose sum is σ = 4131179136. Its totient is φ = 589447008.

The previous prime is 1916875007. The next prime is 1916875063. The reversal of 1916875038 is 8305786191.

It is a super-2 number, since 2×1916875038² = 7348819822615002888, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 139045 + ... + 152207.

It is an arithmetic number, because the mean of its divisors is an integer number (129099348).

Almost surely, 2^1916875038 is an apocalyptic number.

1916875038 is an abundant number, since it is smaller than the sum of its proper divisors (2214304098).

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

1916875038 is a wasteful number, since it uses less digits than its factorization.

1916875038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15048.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 1916875038 is about 43782.1314921967. The cubic root of 1916875038 is about 1242.2183318111.

The spelling of 1916875038 in words is "one billion, nine hundred sixteen million, eight hundred seventy-five thousand, thirty-eight".