44001312 has 48 divisors (see below), whose sum is σ = 117244512. Its totient is φ = 14446080.

The previous prime is 44001311. The next prime is 44001403. The reversal of 44001312 is 21310044.

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

It is a super-2 number, since 2×44001312² = 3872230915442688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44001291 and 44001300.

It is not an unprimeable number, because it can be changed into a prime (44001311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3012 + ... + 9852.

It is an arithmetic number, because the mean of its divisors is an integer number (2442594).

Almost surely, 2^44001312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44001312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58622256).

44001312 is an abundant number, since it is smaller than the sum of its proper divisors (73243200).

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

44001312 is a wasteful number, since it uses less digits than its factorization.

44001312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6921 (or 6913 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 44001312 is about 6633.3484756946. The cubic root of 44001312 is about 353.0383424500.

Adding to 44001312 its reverse (21310044), we get a palindrome (65311356).

The spelling of 44001312 in words is "forty-four million, one thousand, three hundred twelve".