44401002144 has 48 divisors (see below), whose sum is σ = 116566436448. Its totient is φ = 14798580992.

The previous prime is 44401002137. The next prime is 44401002157. The reversal of 44401002144 is 44120010444.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 978814 + ... + 1023170.

It is an arithmetic number, because the mean of its divisors is an integer number (2428467426).

Almost surely, 2^44401002144 is an apocalyptic number.

It is an amenable number.

44401002144 is an abundant number, since it is smaller than the sum of its proper divisors (72165434304).

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

44401002144 is a wasteful number, since it uses less digits than its factorization.

44401002144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54797 (or 54789 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 44401002144 its reverse (44120010444), we get a palindrome (88521012588).

The spelling of 44401002144 in words is "forty-four billion, four hundred one million, two thousand, one hundred forty-four".