140886018 has 48 divisors (see below), whose sum is σ = 375700416. Its totient is φ = 37156320.

The previous prime is 140885977. The next prime is 140886019. The reversal of 140886018 is 810688041.

140886018 is a `hidden beast` number, since 1 + 40 + 8 + 8 + 601 + 8 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140886019) 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, 41368 + ... + 44643.

It is an arithmetic number, because the mean of its divisors is an integer number (7827092).

Almost surely, 2^140886018 is an apocalyptic number.

140886018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

140886018 is an abundant number, since it is smaller than the sum of its proper divisors (234814398).

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

140886018 is a wasteful number, since it uses less digits than its factorization.

140886018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86039 (or 86036 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 140886018 is about 11869.5416086722. The cubic root of 140886018 is about 520.3424987222.

The spelling of 140886018 in words is "one hundred forty million, eight hundred eighty-six thousand, eighteen".