1089446456 has 16 divisors (see below), whose sum is σ = 2334528240. Its totient is φ = 466905600.

The previous prime is 1089446441. The next prime is 1089446467. The reversal of 1089446456 is 6546449801.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1089446456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9727145 + ... + 9727256.

It is an arithmetic number, because the mean of its divisors is an integer number (145908015).

Almost surely, 2^1089446456 is an apocalyptic number.

It is an amenable number.

1089446456 is an abundant number, since it is smaller than the sum of its proper divisors (1245081784).

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

1089446456 is a wasteful number, since it uses less digits than its factorization.

1089446456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19454414 (or 19454410 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 1089446456 is about 33006.7637916837. The cubic root of 1089446456 is about 1028.9682243394.

The spelling of 1089446456 in words is "one billion, eighty-nine million, four hundred forty-six thousand, four hundred fifty-six".