140042340244 has 6 divisors (see below), whose sum is σ = 245074095434. Its totient is φ = 70021170120.

The previous prime is 140042340241. The next prime is 140042340283. The reversal of 140042340244 is 442043240041.

It can be written as a sum of positive squares in only one way, i.e., 131777712144 + 8264628100 = 363012^2 + 90910^2 .

It is a super-2 number, since 2×140042340244² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140042340241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17505292527 + ... + 17505292534.

Almost surely, 2^140042340244 is an apocalyptic number.

It is an amenable number.

140042340244 is a deficient number, since it is larger than the sum of its proper divisors (105031755190).

140042340244 is a wasteful number, since it uses less digits than its factorization.

140042340244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35010585065 (or 35010585063 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 140042340244 its reverse (442043240041), we get a palindrome (582085580285).

The spelling of 140042340244 in words is "one hundred forty billion, forty-two million, three hundred forty thousand, two hundred forty-four".