140204404 has 6 divisors (see below), whose sum is σ = 245357714. Its totient is φ = 70102200.

The previous prime is 140204399. The next prime is 140204429. The reversal of 140204404 is 404402041.

140204404 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., 72931600 + 67272804 = 8540^2 + 8202^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17525547 + ... + 17525554.

Almost surely, 2^140204404 is an apocalyptic number.

It is an amenable number.

140204404 is a deficient number, since it is larger than the sum of its proper divisors (105153310).

140204404 is a wasteful number, since it uses less digits than its factorization.

140204404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35051105 (or 35051103 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 140204404 is about 11840.7940612106. The cubic root of 140204404 is about 519.5019936235.

Adding to 140204404 its reverse (404402041), we get a palindrome (544606445).

It can be divided in two parts, 140204 and 404, that added together give a cube (140608 = 52³).

The spelling of 140204404 in words is "one hundred forty million, two hundred four thousand, four hundred four".