440719897644 has 96 divisors (see below), whose sum is σ = 1232751690240. Its totient is φ = 135357977664.

The previous prime is 440719897627. The next prime is 440719897661. The reversal of 440719897644 is 446798917044.

440719897644 is a `hidden beast` number, since 440 + 7 + 1 + 9 + 89 + 76 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (440719897627) and next prime (440719897661).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 481057 + ... + 1054919.

It is an arithmetic number, because the mean of its divisors is an integer number (12841163440).

Almost surely, 2^440719897644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440719897644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616375845120).

440719897644 is an abundant number, since it is smaller than the sum of its proper divisors (792031792596).

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

440719897644 is a wasteful number, since it uses less digits than its factorization.

440719897644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574436 (or 574428 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 63.

The spelling of 440719897644 in words is "four hundred forty billion, seven hundred nineteen million, eight hundred ninety-seven thousand, six hundred forty-four".