1089234500 has 48 divisors (see below), whose sum is σ = 2402552880. Its totient is φ = 431360000.

The previous prime is 1089234467. The next prime is 1089234521. The reversal of 1089234500 is 54329801.

1089234500 = T₄₁₁₂ + T₄₁₁₃ + ... + T₄₂₃₆.

It can be written as a sum of positive squares in 8 ways, for example, as 371101696 + 718132804 = 19264^2 + 26798^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39716 + ... + 61284.

It is an arithmetic number, because the mean of its divisors is an integer number (50053185).

Almost surely, 2^1089234500 is an apocalyptic number.

1089234500 is a gapful number since it is divisible by the number (10) 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 1089234500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1201276440).

1089234500 is an abundant number, since it is smaller than the sum of its proper divisors (1313318380).

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

1089234500 is a wasteful number, since it uses less digits than its factorization.

1089234500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21689 (or 21677 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1089234500 is about 33003.5528390505. The cubic root of 1089234500 is about 1028.9014901023.

The spelling of 1089234500 in words is "one billion, eighty-nine million, two hundred thirty-four thousand, five hundred".