444016137 has 4 divisors (see below), whose sum is σ = 592021520. Its totient is φ = 296010756.

The previous prime is 444016121. The next prime is 444016141. The reversal of 444016137 is 731610444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 444016137 - 2⁴ = 444016121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444016147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74002687 + ... + 74002692.

It is an arithmetic number, because the mean of its divisors is an integer number (148005380).

Almost surely, 2^444016137 is an apocalyptic number.

It is an amenable number.

444016137 is a deficient number, since it is larger than the sum of its proper divisors (148005383).

444016137 is a wasteful number, since it uses less digits than its factorization.

444016137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148005382.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 444016137 is about 21071.6904162908. The cubic root of 444016137 is about 762.8976047628.

It can be divided in two parts, 444016 and 137, that added together give a triangular number (444153 = T₉₄₂).

The spelling of 444016137 in words is "four hundred forty-four million, sixteen thousand, one hundred thirty-seven".