918043146 has 40 divisors (see below), whose sum is σ = 2178108900. Its totient is φ = 288012672.

The previous prime is 918043141. The next prime is 918043187. The reversal of 918043146 is 641340819.

918043146 is a `hidden beast` number, since 9 + 180 + 431 + 46 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 911738025 + 6305121 = 30195^2 + 2511^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 918043146.

It is not an unprimeable number, because it can be changed into a prime (918043141) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 163921 + ... + 169428.

Almost surely, 2^918043146 is an apocalyptic number.

918043146 is an abundant number, since it is smaller than the sum of its proper divisors (1260065754).

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

918043146 is a wasteful number, since it uses less digits than its factorization.

918043146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333380 (or 333371 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 918043146 is about 30299.2268218184. The cubic root of 918043146 is about 971.8987663202.

It can be divided in two parts, 9180 and 43146, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 918043146 in words is "nine hundred eighteen million, forty-three thousand, one hundred forty-six".