1918352352 has 384 divisors, whose sum is σ = 6531840000. Its totient is φ = 490119168.

The previous prime is 1918352311. The next prime is 1918352353. The reversal of 1918352352 is 2532538191.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1918352352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1918352353) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12874774 + ... + 12874922.

It is an arithmetic number, because the mean of its divisors is an integer number (17010000).

Almost surely, 2^1918352352 is an apocalyptic number.

1918352352 is a gapful number since it is divisible by the number (12) 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 1918352352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3265920000).

1918352352 is an abundant number, since it is smaller than the sum of its proper divisors (4613487648).

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

1918352352 is a wasteful number, since it uses less digits than its factorization.

1918352352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 201 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The square root of 1918352352 is about 43798.9994406265. Note that the first 3 decimals coincide. The cubic root of 1918352352 is about 1242.5373710905.

The spelling of 1918352352 in words is "one billion, nine hundred eighteen million, three hundred fifty-two thousand, three hundred fifty-two".