1899650382 has 32 divisors (see below), whose sum is σ = 4394380032. Its totient is φ = 536217024.

The previous prime is 1899650377. The next prime is 1899650383. The reversal of 1899650382 is 2830569981.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1899650383) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 268983 + ... + 275954.

It is an arithmetic number, because the mean of its divisors is an integer number (137324376).

Almost surely, 2^1899650382 is an apocalyptic number.

1899650382 is an abundant number, since it is smaller than the sum of its proper divisors (2494729650).

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

1899650382 is a wasteful number, since it uses less digits than its factorization.

1899650382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545032.

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 1899650382 is about 43584.9788573999. The cubic root of 1899650382 is about 1238.4863559026.

It can be divided in two parts, 18996 and 50382, that added together give a triangular number (69378 = T₃₇₂).

The spelling of 1899650382 in words is "one billion, eight hundred ninety-nine million, six hundred fifty thousand, three hundred eighty-two".