408040808444 has 24 divisors (see below), whose sum is σ = 737135616000. Its totient is φ = 197431161840.

The previous prime is 408040808443. The next prime is 408040808459. The reversal of 408040808444 is 444808040804.

It is a super-2 number, since 2×408040808444² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 408040808395 and 408040808404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408040808443) 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, 4067117 + ... + 4166235.

It is an arithmetic number, because the mean of its divisors is an integer number (30713984000).

Almost surely, 2^408040808444 is an apocalyptic number.

It is an amenable number.

408040808444 is a deficient number, since it is larger than the sum of its proper divisors (329094807556).

408040808444 is a wasteful number, since it uses less digits than its factorization.

408040808444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132353 (or 132351 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 44.

The spelling of 408040808444 in words is "four hundred eight billion, forty million, eight hundred eight thousand, four hundred forty-four".