1889223844 has 24 divisors (see below), whose sum is σ = 3391436160. Its totient is φ = 920420256.

The previous prime is 1889223829. The next prime is 1889223899. The reversal of 1889223844 is 4483229881.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20542 + ... + 64810.

It is an arithmetic number, because the mean of its divisors is an integer number (141309840).

Almost surely, 2^1889223844 is an apocalyptic number.

It is an amenable number.

1889223844 is a deficient number, since it is larger than the sum of its proper divisors (1502212316).

1889223844 is a wasteful number, since it uses less digits than its factorization.

1889223844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44547 (or 44545 counting only the distinct ones).

The product of its digits is 884736, while the sum is 49.

The square root of 1889223844 is about 43465.2026798449. The cubic root of 1889223844 is about 1236.2163201920.

The spelling of 1889223844 in words is "one billion, eight hundred eighty-nine million, two hundred twenty-three thousand, eight hundred forty-four".