142044406 has 32 divisors (see below), whose sum is σ = 251055360. Its totient is φ = 59001696.

The previous prime is 142044403. The next prime is 142044431. The reversal of 142044406 is 604440241.

It is a super-2 number, since 2×142044406² = 40353226551785672, which contains 22 as substring.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229165 + ... + 229783.

It is an arithmetic number, because the mean of its divisors is an integer number (7845480).

Almost surely, 2^142044406 is an apocalyptic number.

142044406 is a deficient number, since it is larger than the sum of its proper divisors (109010954).

142044406 is a wasteful number, since it uses less digits than its factorization.

142044406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 142044406 is about 11918.2383765387. The cubic root of 142044406 is about 521.7647217522.

Adding to 142044406 its reverse (604440241), we get a palindrome (746484647).

The spelling of 142044406 in words is "one hundred forty-two million, forty-four thousand, four hundred six".