440040001 has 8 divisors (see below), whose sum is σ = 452643840. Its totient is φ = 427473648.

The previous prime is 440039983. The next prime is 440040011. The reversal of 440040001 is 100040044.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 440040001 - 2¹⁵ = 440007233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440040011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15360 + ... + 33406.

It is an arithmetic number, because the mean of its divisors is an integer number (56580480).

Almost surely, 2^440040001 is an apocalyptic number.

It is an amenable number.

440040001 is a deficient number, since it is larger than the sum of its proper divisors (12603839).

440040001 is a wasteful number, since it uses less digits than its factorization.

440040001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18743.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 440040001 is about 20977.1304281591. The cubic root of 440040001 is about 760.6135402268.

Adding to 440040001 its reverse (100040044), we get a palindrome (540080045).

The spelling of 440040001 in words is "four hundred forty million, forty thousand, one".