1833212380 has 48 divisors (see below), whose sum is σ = 4033008000. Its totient is φ = 699019776.

The previous prime is 1833212371. The next prime is 1833212387. The reversal of 1833212380 is 832123381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1833212387) 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, 25816 + ... + 65824.

It is an arithmetic number, because the mean of its divisors is an integer number (84021000).

Almost surely, 2^1833212380 is an apocalyptic number.

1833212380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1833212380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2016504000).

1833212380 is an abundant number, since it is smaller than the sum of its proper divisors (2199795620).

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

1833212380 is a wasteful number, since it uses less digits than its factorization.

1833212380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40126 (or 40124 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1833212380 is about 42816.0294749525. The cubic root of 1833212380 is about 1223.8764942593.

The spelling of 1833212380 in words is "one billion, eight hundred thirty-three million, two hundred twelve thousand, three hundred eighty".