44221142 has 16 divisors (see below), whose sum is σ = 77857440. Its totient is φ = 18439488.

The previous prime is 44221129. The next prime is 44221147. The reversal of 44221142 is 24112244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44221147) 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, 42167 + ... + 43202.

It is an arithmetic number, because the mean of its divisors is an integer number (4866090).

Almost surely, 2^44221142 is an apocalyptic number.

44221142 is a deficient number, since it is larger than the sum of its proper divisors (33636298).

44221142 is a wasteful number, since it uses less digits than its factorization.

44221142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85415.

The product of its digits is 512, while the sum is 20.

The square root of 44221142 is about 6649.8978939530. The cubic root of 44221142 is about 353.6252911058.

Adding to 44221142 its reverse (24112244), we get a palindrome (68333386).

The spelling of 44221142 in words is "forty-four million, two hundred twenty-one thousand, one hundred forty-two".