440006264406 has 24 divisors (see below), whose sum is σ = 957865146264. Its totient is φ = 145973640960.

The previous prime is 440006264377. The next prime is 440006264407. The reversal of 440006264406 is 604462600044.

It is a happy number.

440006264406 is a `hidden beast` number, since 4 + 4 + 0 + 0 + 0 + 6 + 2 + 644 + 0 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440006264407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57922251 + ... + 57929846.

It is an arithmetic number, because the mean of its divisors is an integer number (39911047761).

Almost surely, 2^440006264406 is an apocalyptic number.

440006264406 is an abundant number, since it is smaller than the sum of its proper divisors (517858881858).

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

440006264406 is a wasteful number, since it uses less digits than its factorization.

440006264406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115852316 (or 115852313 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 440006264406 in words is "four hundred forty billion, six million, two hundred sixty-four thousand, four hundred six".