1889000030 has 32 divisors (see below), whose sum is σ = 3538111104. Its totient is φ = 725560576.

The previous prime is 1889000027. The next prime is 1889000039. The reversal of 1889000030 is 300009881.

It is a happy number.

It is a super-2 number, since 2×1889000030² = 7136642226680001800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1888999957 and 1889000002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889000039) 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, 13007 + ... + 62826.

It is an arithmetic number, because the mean of its divisors is an integer number (110565972).

Almost surely, 2^1889000030 is an apocalyptic number.

1889000030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1889000030 is a deficient number, since it is larger than the sum of its proper divisors (1649111074).

1889000030 is a wasteful number, since it uses less digits than its factorization.

1889000030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75940.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1889000030 is about 43462.6279693256. The cubic root of 1889000030 is about 1236.1675005939.

The spelling of 1889000030 in words is "one billion, eight hundred eighty-nine million, thirty", and thus it is an aban number.