1089298269 has 18 divisors (see below), whose sum is σ = 1582478430. Its totient is φ = 722033136.

The previous prime is 1089298267. The next prime is 1089298277. The reversal of 1089298269 is 9628929801.

1089298269 is a `hidden beast` number, since 10 + 89 + 298 + 269 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1070271225 + 19027044 = 32715^2 + 4362^2 .

It is not a de Polignac number, because 1089298269 - 2¹ = 1089298267 is a prime.

It is a super-2 number, since 2×1089298269² = 2373141437692792722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089298267) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1497984 + ... + 1498710.

Almost surely, 2^1089298269 is an apocalyptic number.

It is an amenable number.

1089298269 is a deficient number, since it is larger than the sum of its proper divisors (493180161).

1089298269 is an frugal number, since it uses more digits than its factorization.

1089298269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 1089298269 is about 33004.5189178694. The cubic root of 1089298269 is about 1028.9215686494.

The spelling of 1089298269 in words is "one billion, eighty-nine million, two hundred ninety-eight thousand, two hundred sixty-nine".