44000000400401 has 4 divisors (see below), whose sum is σ = 44000013718452. Its totient is φ = 43999987082352.

The previous prime is 44000000400361. The next prime is 44000000400403. The reversal of 44000000400401 is 10400400000044.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 15948401667025 + 28051598733376 = 3993545^2 + 5296376^2 .

It is a cyclic number.

It is not a de Polignac number, because 44000000400401 - 2²² = 43999996206097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44000000400401.

It is not an unprimeable number, because it can be changed into a prime (44000000400403) 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, 2451515 + ... + 9695871.

It is an arithmetic number, because the mean of its divisors is an integer number (11000003429613).

Almost surely, 2^{44000000400401} is an apocalyptic number.

It is an amenable number.

44000000400401 is a deficient number, since it is larger than the sum of its proper divisors (13318051).

44000000400401 is an equidigital number, since it uses as much as digits as its factorization.

44000000400401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13318050.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 44000000400401 its reverse (10400400000044), we get a palindrome (54400400400445).

The spelling of 44000000400401 in words is "forty-four trillion, four hundred thousand, four hundred one".