444122013 has 8 divisors (see below), whose sum is σ = 593163648. Its totient is φ = 295580864.

The previous prime is 444122009. The next prime is 444122023. The reversal of 444122013 is 310221444.

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

It is a cyclic number.

It is not a de Polignac number, because 444122013 - 2² = 444122009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444122023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123045 + ... + 126602.

It is an arithmetic number, because the mean of its divisors is an integer number (74145456).

Almost surely, 2^444122013 is an apocalyptic number.

It is an amenable number.

444122013 is a deficient number, since it is larger than the sum of its proper divisors (149041635).

444122013 is a wasteful number, since it uses less digits than its factorization.

444122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250243.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 444122013 is about 21074.2025471902. The cubic root of 444122013 is about 762.9582377900.

Adding to 444122013 its reverse (310221444), we get a palindrome (754343457).

The spelling of 444122013 in words is "four hundred forty-four million, one hundred twenty-two thousand, thirteen".