440646349 has 8 divisors (see below), whose sum is σ = 517682592. Its totient is φ = 369773040.

The previous prime is 440646317. The next prime is 440646361. The reversal of 440646349 is 943646044.

It is a happy number.

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

It is not a de Polignac number, because 440646349 - 2⁵ = 440646317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440646149) 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, 1540579 + ... + 1540864.

It is an arithmetic number, because the mean of its divisors is an integer number (64710324).

Almost surely, 2^440646349 is an apocalyptic number.

It is an amenable number.

440646349 is a deficient number, since it is larger than the sum of its proper divisors (77036243).

440646349 is a wasteful number, since it uses less digits than its factorization.

440646349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081467.

The product of its (nonzero) digits is 248832, while the sum is 40.

The square root of 440646349 is about 20991.5780493035. The cubic root of 440646349 is about 760.9627394105.

The spelling of 440646349 in words is "four hundred forty million, six hundred forty-six thousand, three hundred forty-nine".