1089269240 has 64 divisors (see below), whose sum is σ = 2586276000. Its totient is φ = 411747840.

The previous prime is 1089269239. The next prime is 1089269273. The reversal of 1089269240 is 429629801.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348806 + ... + 351914.

Almost surely, 2^1089269240 is an apocalyptic number.

1089269240 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 1089269240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293138000).

1089269240 is an abundant number, since it is smaller than the sum of its proper divisors (1497006760).

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

1089269240 is a wasteful number, since it uses less digits than its factorization.

1089269240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3600 (or 3596 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 1089269240 is about 33004.0791418273. The cubic root of 1089269240 is about 1028.9124285665.

The spelling of 1089269240 in words is "one billion, eighty-nine million, two hundred sixty-nine thousand, two hundred forty".