1444165406 has 8 divisors (see below), whose sum is σ = 2216626104. Its totient is φ = 705290040.

The previous prime is 1444165343. The next prime is 1444165441. The reversal of 1444165406 is 6045614441.

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

It is a super-2 number, since 2×1444165406² = 4171227439774289672, which contains 22 as substring.

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, 8396225 + ... + 8396396.

It is an arithmetic number, because the mean of its divisors is an integer number (277078263).

Almost surely, 2^1444165406 is an apocalyptic number.

1444165406 is a deficient number, since it is larger than the sum of its proper divisors (772460698).

1444165406 is a wasteful number, since it uses less digits than its factorization.

1444165406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16792666.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 1444165406 is about 38002.1763324155. The cubic root of 1444165406 is about 1130.3310190068.

Adding to 1444165406 its reverse (6045614441), we get a palindrome (7489779847).

The spelling of 1444165406 in words is "one billion, four hundred forty-four million, one hundred sixty-five thousand, four hundred six".