140312400234 has 64 divisors (see below), whose sum is σ = 302963721984. Its totient is φ = 43156878336.

The previous prime is 140312400233. The next prime is 140312400253. The reversal of 140312400234 is 432004213041.

It is not an unprimeable number, because it can be changed into a prime (140312400233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7845987 + ... + 7863849.

It is an arithmetic number, because the mean of its divisors is an integer number (4733808156).

Almost surely, 2^140312400234 is an apocalyptic number.

140312400234 is an abundant number, since it is smaller than the sum of its proper divisors (162651321750).

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

140312400234 is a wasteful number, since it uses less digits than its factorization.

140312400234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19391.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 140312400234 its reverse (432004213041), we get a palindrome (572316613275).

The spelling of 140312400234 in words is "one hundred forty billion, three hundred twelve million, four hundred thousand, two hundred thirty-four".