142000044 has 12 divisors (see below), whose sum is σ = 331333464. Its totient is φ = 47333344.

The previous prime is 142000039. The next prime is 142000049. The reversal of 142000044 is 440000241.

It is an interprime number because it is at equal distance from previous prime (142000039) and next prime (142000049).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 141999987 and 142000032.

It is not an unprimeable number, because it can be changed into a prime (142000049) 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 3 ways as a sum of consecutive naturals, for example, 5916657 + ... + 5916680.

It is an arithmetic number, because the mean of its divisors is an integer number (27611122).

Almost surely, 2^142000044 is an apocalyptic number.

It is an amenable number.

142000044 is an abundant number, since it is smaller than the sum of its proper divisors (189333420).

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

142000044 is a wasteful number, since it uses less digits than its factorization.

142000044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11833344 (or 11833342 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 142000044 is about 11916.3771340118. The cubic root of 142000044 is about 521.7103985132.

Adding to 142000044 its reverse (440000241), we get a palindrome (582000285).

The spelling of 142000044 in words is "one hundred forty-two million, forty-four", and thus it is an aban number.