142004044 has 48 divisors (see below), whose sum is σ = 306976768. Its totient is φ = 55971648.

The previous prime is 142004029. The next prime is 142004063. The reversal of 142004044 is 440400241.

142004044 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133057 + ... + 134119.

Almost surely, 2^142004044 is an apocalyptic number.

142004044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142004044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153488384).

142004044 is an abundant number, since it is smaller than the sum of its proper divisors (164972724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142004044 is a wasteful number, since it uses less digits than its factorization.

142004044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454 (or 1452 counting only the distinct ones).

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

The square root of 142004044 is about 11916.5449690756. The cubic root of 142004044 is about 521.7152971549.

Adding to 142004044 its reverse (440400241), we get a palindrome (582404285).

The spelling of 142004044 in words is "one hundred forty-two million, four thousand, forty-four".