10405320444 has 36 divisors (see below), whose sum is σ = 26361751416. Its totient is φ = 3460605408.

The previous prime is 10405320421. The next prime is 10405320479. The reversal of 10405320444 is 44402350401.

It is a happy number.

10405320444 is a `hidden beast` number, since 10 + 405 + 3 + 204 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 310279 + ... + 342174.

Almost surely, 2^10405320444 is an apocalyptic number.

It is an amenable number.

10405320444 is an abundant number, since it is smaller than the sum of its proper divisors (15956430972).

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

10405320444 is a wasteful number, since it uses less digits than its factorization.

10405320444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652906 (or 652901 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 10405320444 its reverse (44402350401), we get a palindrome (54807670845).

The spelling of 10405320444 in words is "ten billion, four hundred five million, three hundred twenty thousand, four hundred forty-four".