140002040 has 32 divisors (see below), whose sum is σ = 318260880. Its totient is φ = 55421952.

The previous prime is 140002019. The next prime is 140002063. The reversal of 140002040 is 40200041.

140002040 is nontrivially palindromic in base 7.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14162 + ... + 21921.

Almost surely, 2^140002040 is an apocalyptic number.

140002040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140002040 is an abundant number, since it is smaller than the sum of its proper divisors (178258840).

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

140002040 is a wasteful number, since it uses less digits than its factorization.

140002040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36191 (or 36187 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 140002040 is about 11832.2457716192. The cubic root of 140002040 is about 519.2519322414.

Adding to 140002040 its reverse (40200041), we get a palindrome (180202081).

The spelling of 140002040 in words is "one hundred forty million, two thousand, forty".