440048345721 has 16 divisors (see below), whose sum is σ = 617286018048. Its totient is φ = 278474889600.

The previous prime is 440048345713. The next prime is 440048345729. The reversal of 440048345721 is 127543840044.

It is an interprime number because it is at equal distance from previous prime (440048345713) and next prime (440048345729).

It is not a de Polignac number, because 440048345721 - 2³ = 440048345713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (440048345729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48341785 + ... + 48350886.

It is an arithmetic number, because the mean of its divisors is an integer number (38580376128).

Almost surely, 2^440048345721 is an apocalyptic number.

440048345721 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

440048345721 is a deficient number, since it is larger than the sum of its proper divisors (177237672327).

440048345721 is a wasteful number, since it uses less digits than its factorization.

440048345721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96692752.

The product of its (nonzero) digits is 430080, while the sum is 42.

The spelling of 440048345721 in words is "four hundred forty billion, forty-eight million, three hundred forty-five thousand, seven hundred twenty-one".