1830189372 has 36 divisors (see below), whose sum is σ = 4693960488. Its totient is φ = 554602400.

The previous prime is 1830189367. The next prime is 1830189397. The reversal of 1830189372 is 2739810381.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 628779 + ... + 631682.

Almost surely, 2^1830189372 is an apocalyptic number.

1830189372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1830189372 is an abundant number, since it is smaller than the sum of its proper divisors (2863771116).

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

1830189372 is a wasteful number, since it uses less digits than its factorization.

1830189372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260490 (or 1260477 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 1830189372 is about 42780.7126167856. The cubic root of 1830189372 is about 1223.2033909469.

The spelling of 1830189372 in words is "one billion, eight hundred thirty million, one hundred eighty-nine thousand, three hundred seventy-two".