1943136252 has 72 divisors (see below), whose sum is σ = 5078501792. Its totient is φ = 625968000.

The previous prime is 1943136241. The next prime is 1943136253. The reversal of 1943136252 is 2526313491.

1943136252 is a `hidden beast` number, since 1 + 94 + 313 + 6 + 252 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1943136253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196302 + ... + 205962.

Almost surely, 2^1943136252 is an apocalyptic number.

1943136252 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 1943136252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2539250896).

1943136252 is an abundant number, since it is smaller than the sum of its proper divisors (3135365540).

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

1943136252 is a wasteful number, since it uses less digits than its factorization.

1943136252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9859 (or 9854 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 1943136252 is about 44081.0191805952. The cubic root of 1943136252 is about 1247.8654240366.

The spelling of 1943136252 in words is "one billion, nine hundred forty-three million, one hundred thirty-six thousand, two hundred fifty-two".