1816001132 has 48 divisors (see below), whose sum is σ = 3676609440.
Its totient is φ = 775680000.
The previous prime is 1816001113. The next prime is 1816001147. The reversal of 1816001132 is 2311006181.
It is a super-2 number, since 2×18160011322 = 6595720222850562848, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1816001098 and 1816001107.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603632 + ... + 606632.
It is an arithmetic number, because the mean of its divisors is an integer number (76596030).
Almost surely, 21816001132 is an apocalyptic number.
It is an amenable number.
1816001132 is an abundant number, since it is smaller than the sum of its proper divisors (1860608308).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1816001132 is a wasteful number, since it uses less digits than its factorization.
1816001132 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3842 (or 3840 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 23.
The square root of 1816001132 is about 42614.5647871711.
The cubic root of 1816001132 is about 1220.0342935805.
The spelling of 1816001132 in words is "one billion, eight hundred sixteen million, one thousand, one hundred thirty-two".