140018064 has 40 divisors (see below), whose sum is σ = 371494080. Its totient is φ = 45410688.

The previous prime is 140018063. The next prime is 140018107. The reversal of 140018064 is 460810041.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (140018063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37644 + ... + 41195.

It is an arithmetic number, because the mean of its divisors is an integer number (9287352).

Almost surely, 2^140018064 is an apocalyptic number.

It is an amenable number.

140018064 is an abundant number, since it is smaller than the sum of its proper divisors (231476016).

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

140018064 is a wasteful number, since it uses less digits than its factorization.

140018064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78887 (or 78881 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 140018064 is about 11832.9228849004. The cubic root of 140018064 is about 519.2717418945.

The spelling of 140018064 in words is "one hundred forty million, eighteen thousand, sixty-four".