444240142 has 4 divisors (see below), whose sum is σ = 666360216. Its totient is φ = 222120070.

The previous prime is 444240079. The next prime is 444240143. The reversal of 444240142 is 241042444.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444240143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111060034 + ... + 111060037.

It is an arithmetic number, because the mean of its divisors is an integer number (166590054).

Almost surely, 2^444240142 is an apocalyptic number.

444240142 is a deficient number, since it is larger than the sum of its proper divisors (222120074).

444240142 is a wasteful number, since it uses less digits than its factorization.

444240142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222120073.

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 444240142 is about 21077.0050529007. The cubic root of 444240142 is about 763.0258764879.

Adding to 444240142 its reverse (241042444), we get a palindrome (685282586).

The spelling of 444240142 in words is "four hundred forty-four million, two hundred forty thousand, one hundred forty-two".