44140242442 has 4 divisors (see below), whose sum is σ = 66210363666. Its totient is φ = 22070121220.

The previous prime is 44140242427. The next prime is 44140242449. The reversal of 44140242442 is 24424204144.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32989093641 + 11151148801 = 181629^2 + 105599^2 .

It is a super-2 number, since 2×44140242442² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44140242449) 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 as a sum of consecutive naturals, namely, 11035060609 + ... + 11035060612.

Almost surely, 2^44140242442 is an apocalyptic number.

44140242442 is a deficient number, since it is larger than the sum of its proper divisors (22070121224).

44140242442 is a wasteful number, since it uses less digits than its factorization.

44140242442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22070121223.

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 44140242442 its reverse (24424204144), we get a palindrome (68564446586).

The spelling of 44140242442 in words is "forty-four billion, one hundred forty million, two hundred forty-two thousand, four hundred forty-two".