2018947140 has 96 divisors (see below), whose sum is σ = 7178492160. Its totient is φ = 461472768.

The previous prime is 2018947129. The next prime is 2018947243. The reversal of 2018947140 is 417498102.

2018947140 is a `hidden beast` number, since 2 + 0 + 189 + 471 + 4 + 0 = 666.

It is a super-2 number, since 2×2018947140² = 8152295108228359200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2018947095 and 2018947104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263277 + ... + 270836.

It is an arithmetic number, because the mean of its divisors is an integer number (74775960).

Almost surely, 2^2018947140 is an apocalyptic number.

2018947140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2018947140 is an abundant number, since it is smaller than the sum of its proper divisors (5159545020).

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

2018947140 is a wasteful number, since it uses less digits than its factorization.

2018947140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534138 (or 534130 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2018947140 is about 44932.6956680767. The cubic root of 2018947140 is about 1263.8872016859.

The spelling of 2018947140 in words is "two billion, eighteen million, nine hundred forty-seven thousand, one hundred forty".