44020142 has 16 divisors (see below), whose sum is σ = 68602464. Its totient is φ = 21168000.

The previous prime is 44020133. The next prime is 44020147. The reversal of 44020142 is 24102044.

It is a self number, because there is not a number n which added to its sum of digits gives 44020142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44020147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2042 + ... + 9602.

It is an arithmetic number, because the mean of its divisors is an integer number (4287654).

Almost surely, 2^44020142 is an apocalyptic number.

44020142 is a deficient number, since it is larger than the sum of its proper divisors (24582322).

44020142 is a wasteful number, since it uses less digits than its factorization.

44020142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 44020142 is about 6634.7676673716. The cubic root of 44020142 is about 353.0886952208.

Adding to 44020142 its reverse (24102044), we get a palindrome (68122186).

The spelling of 44020142 in words is "forty-four million, twenty thousand, one hundred forty-two".