1844890026 has 16 divisors (see below), whose sum is σ = 4216891584. Its totient is φ = 527111424.

The previous prime is 1844889973. The next prime is 1844890027. The reversal of 1844890026 is 6200984481.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 43925953 = 1844890026 / (1 + 8 + 4 + 4 + 8 + 9 + 0 + 0 + 2 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 1844890026.

It is not an unprimeable number, because it can be changed into a prime (1844890027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21962935 + ... + 21963018.

It is an arithmetic number, because the mean of its divisors is an integer number (263555724).

Almost surely, 2^1844890026 is an apocalyptic number.

1844890026 is an abundant number, since it is smaller than the sum of its proper divisors (2372001558).

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

1844890026 is a wasteful number, since it uses less digits than its factorization.

1844890026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43925965.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 1844890026 is about 42952.1830178630. The cubic root of 1844890026 is about 1226.4697119821.

The spelling of 1844890026 in words is "one billion, eight hundred forty-four million, eight hundred ninety thousand, twenty-six".