444140234 has 4 divisors (see below), whose sum is σ = 666210354. Its totient is φ = 222070116.

The previous prime is 444140231. The next prime is 444140261. The reversal of 444140234 is 432041444.

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., 275062225 + 169078009 = 16585^2 + 13003^2 .

It is not an unprimeable number, because it can be changed into a prime (444140231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111035057 + ... + 111035060.

Almost surely, 2^444140234 is an apocalyptic number.

444140234 is a deficient number, since it is larger than the sum of its proper divisors (222070120).

444140234 is a wasteful number, since it uses less digits than its factorization.

444140234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222070119.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 444140234 is about 21074.6348485567. The cubic root of 444140234 is about 762.9686716134.

Adding to 444140234 its reverse (432041444), we get a palindrome (876181678).

The spelling of 444140234 in words is "four hundred forty-four million, one hundred forty thousand, two hundred thirty-four".