1089224136 has 576 divisors, whose sum is σ = 4302305280. Its totient is φ = 243855360.

The previous prime is 1089224053. The next prime is 1089224141. The reversal of 1089224136 is 6314229801.

It is a super-4 number, since 4×1089224136⁴ (a number of 37 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1089224136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 8576505 + ... + 8576631.

It is an arithmetic number, because the mean of its divisors is an integer number (7469280).

It is a vampire number, since it can be written as 12936 ⋅ 84201 (with its own digits).

Almost surely, 2^1089224136 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 1089224136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2151152640).

1089224136 is an abundant number, since it is smaller than the sum of its proper divisors (3213081144).

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

1089224136 is a wasteful number, since it uses less digits than its factorization.

1089224136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1089224136 is about 33003.3958252783. The cubic root of 1089224136 is about 1028.8982267802.

The spelling of 1089224136 in words is "one billion, eighty-nine million, two hundred twenty-four thousand, one hundred thirty-six".