444591142 has 8 divisors (see below), whose sum is σ = 681075936. Its totient is φ = 217565832.

The previous prime is 444591131. The next prime is 444591151. The reversal of 444591142 is 241195444.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×444591142² = 395322567089728328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 444591098 and 444591107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2364753 + ... + 2364940.

It is an arithmetic number, because the mean of its divisors is an integer number (85134492).

Almost surely, 2^444591142 is an apocalyptic number.

444591142 is a deficient number, since it is larger than the sum of its proper divisors (236484794).

444591142 is a wasteful number, since it uses less digits than its factorization.

444591142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729742.

The product of its digits is 23040, while the sum is 34.

The square root of 444591142 is about 21085.3300187595. The cubic root of 444591142 is about 763.2267825233.

The spelling of 444591142 in words is "four hundred forty-four million, five hundred ninety-one thousand, one hundred forty-two".