1872242871 has 16 divisors (see below), whose sum is σ = 2587852800. Its totient is φ = 1202579168.

The previous prime is 1872242863. The next prime is 1872242891. The reversal of 1872242871 is 1782422781.

It is a cyclic number.

It is not a de Polignac number, because 1872242871 - 2³ = 1872242863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872242831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19210 + ... + 64136.

It is an arithmetic number, because the mean of its divisors is an integer number (161740800).

Almost surely, 2^1872242871 is an apocalyptic number.

1872242871 is a deficient number, since it is larger than the sum of its proper divisors (715609929).

1872242871 is a wasteful number, since it uses less digits than its factorization.

1872242871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45438.

The product of its digits is 100352, while the sum is 42.

The square root of 1872242871 is about 43269.4218935266. The cubic root of 1872242871 is about 1232.5013260138.

The spelling of 1872242871 in words is "one billion, eight hundred seventy-two million, two hundred forty-two thousand, eight hundred seventy-one".