84440488444 has 24 divisors (see below), whose sum is σ = 164271325568. Its totient is φ = 37715353920.

The previous prime is 84440488417. The next prime is 84440488453. The reversal of 84440488444 is 44488404448.

It is a super-2 number, since 2×84440488444² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 84440488391 and 84440488400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26189607 + ... + 26192830.

Almost surely, 2^84440488444 is an apocalyptic number.

It is an amenable number.

84440488444 is a deficient number, since it is larger than the sum of its proper divisors (79830837124).

84440488444 is a wasteful number, since it uses less digits than its factorization.

84440488444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52382485 (or 52382483 counting only the distinct ones).

The product of its (nonzero) digits is 8388608, while the sum is 52.

The spelling of 84440488444 in words is "eighty-four billion, four hundred forty million, four hundred eighty-eight thousand, four hundred forty-four".