44000000400399 has 8 divisors (see below), whose sum is σ = 58793377066752. Its totient is φ = 29269978667160.

The previous prime is 44000000400361. The next prime is 44000000400403. The reversal of 44000000400399 is 99300400000044.

It is a happy number.

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

It is not a de Polignac number, because 44000000400399 - 2⁸ = 44000000400143 is a prime.

It is a super-3 number, since 3×44000000400399³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44000000400299) 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, 15838731657 + ... + 15838734434.

It is an arithmetic number, because the mean of its divisors is an integer number (7349172133344).

Almost surely, 2^{44000000400399} is an apocalyptic number.

44000000400399 is a deficient number, since it is larger than the sum of its proper divisors (14793376666353).

44000000400399 is a wasteful number, since it uses less digits than its factorization.

44000000400399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31677466557.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 44000000400399 in words is "forty-four trillion, four hundred thousand, three hundred ninety-nine".