1842026881 has 4 divisors (see below), whose sum is σ = 1842168132. Its totient is φ = 1841885632.

The previous prime is 1842026869. The next prime is 1842026909. The reversal of 1842026881 is 1886202481.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1886202481 = 599 ⋅3148919.

It can be written as a sum of positive squares in 2 ways, for example, as 1113890625 + 728136256 = 33375^2 + 26984^2 .

It is a cyclic number.

It is not a de Polignac number, because 1842026881 - 2²⁷ = 1707809153 is a prime.

It is a super-2 number, since 2×1842026881² = 6786126060653176322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1842026831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48820 + ... + 77893.

It is an arithmetic number, because the mean of its divisors is an integer number (460542033).

Almost surely, 2^1842026881 is an apocalyptic number.

It is an amenable number.

1842026881 is a deficient number, since it is larger than the sum of its proper divisors (141251).

1842026881 is a wasteful number, since it uses less digits than its factorization.

1842026881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141250.

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 1842026881 is about 42918.8406297281. The cubic root of 1842026881 is about 1225.8349173674.

The spelling of 1842026881 in words is "one billion, eight hundred forty-two million, twenty-six thousand, eight hundred eighty-one".