1089228672 has 192 divisors, whose sum is σ = 3602158560. Its totient is φ = 309473280.

The previous prime is 1089228667. The next prime is 1089228683. The reversal of 1089228672 is 2768229801.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2362522 + ... + 2362982.

Almost surely, 2^1089228672 is an apocalyptic number.

1089228672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1089228672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1801079280).

1089228672 is an abundant number, since it is smaller than the sum of its proper divisors (2512929888).

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

1089228672 is a wasteful number, since it uses less digits than its factorization.

1089228672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1089228672 is about 33003.4645454080. The cubic root of 1089228672 is about 1028.8996550372.

The spelling of 1089228672 in words is "one billion, eighty-nine million, two hundred twenty-eight thousand, six hundred seventy-two".