142044404 has 12 divisors (see below), whose sum is σ = 248661924. Its totient is φ = 70998144.

The previous prime is 142044403. The next prime is 142044431. The reversal of 142044404 is 404440241.

It can be written as a sum of positive squares in 2 ways, for example, as 39062500 + 102981904 = 6250^2 + 10148^2 .

It is a super-2 number, since 2×142044404² = 40353225415430432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142044404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142044403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17372 + ... + 24204.

It is an arithmetic number, because the mean of its divisors is an integer number (20721827).

Almost surely, 2^142044404 is an apocalyptic number.

It is an amenable number.

142044404 is a deficient number, since it is larger than the sum of its proper divisors (106617520).

142044404 is a wasteful number, since it uses less digits than its factorization.

142044404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12034 (or 12032 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 142044404 is about 11918.2382926337. The cubic root of 142044404 is about 521.7647193033.

Adding to 142044404 its reverse (404440241), we get a palindrome (546484645).

The spelling of 142044404 in words is "one hundred forty-two million, forty-four thousand, four hundred four".