1871370242 has 16 divisors (see below), whose sum is σ = 3311549952. Its totient is φ = 776144160.

The previous prime is 1871370227. The next prime is 1871370247. The reversal of 1871370242 is 2420731781.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1871370247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2155523 + ... + 2156390.

It is an arithmetic number, because the mean of its divisors is an integer number (206971872).

Almost surely, 2^1871370242 is an apocalyptic number.

1871370242 is a deficient number, since it is larger than the sum of its proper divisors (1440179710).

1871370242 is a wasteful number, since it uses less digits than its factorization.

1871370242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311953.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 1871370242 is about 43259.3370499364. The cubic root of 1871370242 is about 1232.3098117691.

The spelling of 1871370242 in words is "one billion, eight hundred seventy-one million, three hundred seventy thousand, two hundred forty-two".