440664414 has 16 divisors (see below), whose sum is σ = 890056080. Its totient is φ = 145433600.

The previous prime is 440664407. The next prime is 440664421. The reversal of 440664414 is 414466044.

It is an interprime number because it is at equal distance from previous prime (440664407) and next prime (440664421).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362979 + ... + 364190.

It is an arithmetic number, because the mean of its divisors is an integer number (55628505).

Almost surely, 2^440664414 is an apocalyptic number.

440664414 is an abundant number, since it is smaller than the sum of its proper divisors (449391666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440664414 is a wasteful number, since it uses less digits than its factorization.

440664414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727275.

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 440664414 is about 20992.0083365075. The cubic root of 440664414 is about 760.9731382289.

The spelling of 440664414 in words is "four hundred forty million, six hundred sixty-four thousand, four hundred fourteen".