140344004 has 6 divisors (see below), whose sum is σ = 245602014. Its totient is φ = 70172000.

The previous prime is 140343979. The next prime is 140344007. The reversal of 140344004 is 400443041.

140344004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 140185600 + 158404 = 11840^2 + 398^2 .

It is not an unprimeable number, because it can be changed into a prime (140344007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17542997 + ... + 17543004.

It is an arithmetic number, because the mean of its divisors is an integer number (40933669).

Almost surely, 2^140344004 is an apocalyptic number.

It is an amenable number.

140344004 is a deficient number, since it is larger than the sum of its proper divisors (105258010).

140344004 is a wasteful number, since it uses less digits than its factorization.

140344004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35086005 (or 35086003 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 140344004 is about 11846.6874694996. The cubic root of 140344004 is about 519.6743572573.

Adding to 140344004 its reverse (400443041), we get a palindrome (540787045).

The spelling of 140344004 in words is "one hundred forty million, three hundred forty-four thousand, four".