440149369 has 8 divisors (see below), whose sum is σ = 486241920. Its totient is φ = 395070000.

The previous prime is 440149357. The next prime is 440149379. The reversal of 440149369 is 963941044.

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 440149369 - 2⁹ = 440148857 is a prime.

It is a super-2 number, since 2×440149369² = 387462934062196322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440149319) 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, 252382 + ... + 254119.

It is an arithmetic number, because the mean of its divisors is an integer number (60780240).

Almost surely, 2^440149369 is an apocalyptic number.

It is an amenable number.

440149369 is a deficient number, since it is larger than the sum of its proper divisors (46092551).

440149369 is a wasteful number, since it uses less digits than its factorization.

440149369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506591.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 440149369 is about 20979.7371051212. The cubic root of 440149369 is about 760.6765495673.

The spelling of 440149369 in words is "four hundred forty million, one hundred forty-nine thousand, three hundred sixty-nine".