10440213444 has 30 divisors (see below), whose sum is σ = 27292781054. Its totient is φ = 3480071040.

The previous prime is 10440213437. The next prime is 10440213467. The reversal of 10440213444 is 44431204401.

10440213444 is a `hidden beast` number, since 1 + 0 + 4 + 4 + 0 + 213 + 444 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8559950400 + 1880263044 = 92520^2 + 43362^2 .

It is a super-2 number, since 2×10440213444² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16111117 + ... + 16111764.

Almost surely, 2^10440213444 is an apocalyptic number.

It is an amenable number.

10440213444 is an abundant number, since it is smaller than the sum of its proper divisors (16852567610).

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

10440213444 is a wasteful number, since it uses less digits than its factorization.

10440213444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32222897 (or 32222886 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 10440213444 its reverse (44431204401), we get a palindrome (54871417845).

The spelling of 10440213444 in words is "ten billion, four hundred forty million, two hundred thirteen thousand, four hundred forty-four".