1872442866 has 32 divisors (see below), whose sum is σ = 4531628160. Its totient is φ = 503513856.

The previous prime is 1872442861. The next prime is 1872442877. The reversal of 1872442866 is 6682442781.

It is not an unprimeable number, because it can be changed into a prime (1872442861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1310521 + ... + 1311948.

It is an arithmetic number, because the mean of its divisors is an integer number (141613380).

Almost surely, 2^1872442866 is an apocalyptic number.

1872442866 is an abundant number, since it is smaller than the sum of its proper divisors (2659185294).

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

1872442866 is a wasteful number, since it uses less digits than its factorization.

1872442866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622498.

The product of its digits is 1032192, while the sum is 48.

The square root of 1872442866 is about 43271.7328749381. The cubic root of 1872442866 is about 1232.5452101576.

The spelling of 1872442866 in words is "one billion, eight hundred seventy-two million, four hundred forty-two thousand, eight hundred sixty-six".