140402631734 has 8 divisors (see below), whose sum is σ = 211134437328. Its totient is φ = 70024485960.

The previous prime is 140402631701. The next prime is 140402631791. The reversal of 140402631734 is 437136204041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 140402631694 and 140402631703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88413962 + ... + 88415549.

It is an arithmetic number, because the mean of its divisors is an integer number (26391804666).

Almost surely, 2^140402631734 is an apocalyptic number.

140402631734 is a deficient number, since it is larger than the sum of its proper divisors (70731805594).

140402631734 is a wasteful number, since it uses less digits than its factorization.

140402631734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176829910.

The product of its (nonzero) digits is 48384, while the sum is 35.

Adding to 140402631734 its reverse (437136204041), we get a palindrome (577538835775).

The spelling of 140402631734 in words is "one hundred forty billion, four hundred two million, six hundred thirty-one thousand, seven hundred thirty-four".