1089984406 has 16 divisors (see below), whose sum is σ = 1919046816. Its totient is φ = 454510656.

The previous prime is 1089984367. The next prime is 1089984431. The reversal of 1089984406 is 6044899801.

It is a self number, because there is not a number n which added to its sum of digits gives 1089984406.

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, 1051591 + ... + 1052626.

It is an arithmetic number, because the mean of its divisors is an integer number (119940426).

Almost surely, 2^1089984406 is an apocalyptic number.

1089984406 is a deficient number, since it is larger than the sum of its proper divisors (829062410).

1089984406 is a wasteful number, since it uses less digits than its factorization.

1089984406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104263.

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 1089984406 is about 33014.9118732733. The cubic root of 1089984406 is about 1029.1375587660.

The spelling of 1089984406 in words is "one billion, eighty-nine million, nine hundred eighty-four thousand, four hundred six".