440426815068 has 12 divisors (see below), whose sum is σ = 1027662568520. Its totient is φ = 146808938352.

The previous prime is 440426815067. The next prime is 440426815069. The reversal of 440426815068 is 860518624044.

It is an interprime number because it is at equal distance from previous prime (440426815067) and next prime (440426815069).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440426815061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18351117283 + ... + 18351117306.

Almost surely, 2^440426815068 is an apocalyptic number.

It is an amenable number.

440426815068 is an abundant number, since it is smaller than the sum of its proper divisors (587235753452).

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

440426815068 is a wasteful number, since it uses less digits than its factorization.

440426815068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36702234596 (or 36702234594 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 48.

The spelling of 440426815068 in words is "four hundred forty billion, four hundred twenty-six million, eight hundred fifteen thousand, sixty-eight".