140400718 has 16 divisors (see below), whose sum is σ = 217413504. Its totient is φ = 67949280.

The previous prime is 140400697. The next prime is 140400721. The reversal of 140400718 is 817004041.

It is a super-2 number, since 2×140400718² = 39424723229831048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140400692 and 140400701.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 9763 + ... + 19393.

It is an arithmetic number, because the mean of its divisors is an integer number (13588344).

Almost surely, 2^140400718 is an apocalyptic number.

140400718 is a deficient number, since it is larger than the sum of its proper divisors (77012786).

140400718 is a wasteful number, since it uses less digits than its factorization.

140400718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9867.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 140400718 is about 11849.0808926262. The cubic root of 140400718 is about 519.7443491855.

Adding to 140400718 its reverse (817004041), we get a palindrome (957404759).

The spelling of 140400718 in words is "one hundred forty million, four hundred thousand, seven hundred eighteen".