1889380101 has 32 divisors (see below), whose sum is σ = 2941708288. Its totient is φ = 1056369600.

The previous prime is 1889380091. The next prime is 1889380111. The reversal of 1889380101 is 1010839881.

It is an interprime number because it is at equal distance from previous prime (1889380091) and next prime (1889380111).

It is not a de Polignac number, because 1889380101 - 2¹³ = 1889371909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1889380101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889380111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208011 + ... + 216903.

It is an arithmetic number, because the mean of its divisors is an integer number (91928384).

Almost surely, 2^1889380101 is an apocalyptic number.

It is an amenable number.

1889380101 is a deficient number, since it is larger than the sum of its proper divisors (1052328187).

1889380101 is a wasteful number, since it uses less digits than its factorization.

1889380101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9121.

The product of its (nonzero) digits is 13824, while the sum is 39.

The square root of 1889380101 is about 43467.0001380358. Note that the first 3 decimals coincide. The cubic root of 1889380101 is about 1236.2504015828.

The spelling of 1889380101 in words is "one billion, eight hundred eighty-nine million, three hundred eighty thousand, one hundred one".