1089650408 has 128 divisors (see below), whose sum is σ = 2657491200. Its totient is φ = 406425600.

The previous prime is 1089650383. The next prime is 1089650417. The reversal of 1089650408 is 8040569801.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3233216 + ... + 3233552.

It is an arithmetic number, because the mean of its divisors is an integer number (20761650).

Almost surely, 2^1089650408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1089650408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328745600).

1089650408 is an abundant number, since it is smaller than the sum of its proper divisors (1567840792).

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

1089650408 is a wasteful number, since it uses less digits than its factorization.

1089650408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 1089650408 is about 33009.8531956748. The cubic root of 1089650408 is about 1029.0324303502.

The spelling of 1089650408 in words is "one billion, eighty-nine million, six hundred fifty thousand, four hundred eight".