1871016242 has 8 divisors (see below), whose sum is σ = 2811912732. Its totient is φ = 933712000.

The previous prime is 1871016239. The next prime is 1871016289. The reversal of 1871016242 is 2426101781.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1726319401 + 144696841 = 41549^2 + 12029^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1871016199 and 1871016208.

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, 896759 + ... + 898842.

Almost surely, 2^1871016242 is an apocalyptic number.

1871016242 is a deficient number, since it is larger than the sum of its proper divisors (940896490).

1871016242 is a wasteful number, since it uses less digits than its factorization.

1871016242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796124.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 1871016242 is about 43255.2452541885. The cubic root of 1871016242 is about 1232.2321030803.

The spelling of 1871016242 in words is "one billion, eight hundred seventy-one million, sixteen thousand, two hundred forty-two".