444038693 has 4 divisors (see below), whose sum is σ = 507472800. Its totient is φ = 380604588.

The previous prime is 444038687. The next prime is 444038731. The reversal of 444038693 is 396830444.

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 444038693 - 2¹⁰ = 444037669 is a prime.

It is a super-2 number, since 2×444038693² = 394340721762296498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444038693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444038653) 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, 31717043 + ... + 31717056.

It is an arithmetic number, because the mean of its divisors is an integer number (126868200).

Almost surely, 2^444038693 is an apocalyptic number.

It is an amenable number.

444038693 is a deficient number, since it is larger than the sum of its proper divisors (63434107).

444038693 is an equidigital number, since it uses as much as digits as its factorization.

444038693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63434106.

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 444038693 is about 21072.2256299613. The cubic root of 444038693 is about 762.9105229321.

The spelling of 444038693 in words is "four hundred forty-four million, thirty-eight thousand, six hundred ninety-three".