1109265860 has 24 divisors (see below), whose sum is σ = 2358948480. Its totient is φ = 438089184.

The previous prime is 1109265853. The next prime is 1109265877. The reversal of 1109265860 is 685629011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349454 + ... + 352613.

It is an arithmetic number, because the mean of its divisors is an integer number (98289520).

Almost surely, 2^1109265860 is an apocalyptic number.

1109265860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1109265860 is an abundant number, since it is smaller than the sum of its proper divisors (1249682620).

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

1109265860 is a wasteful number, since it uses less digits than its factorization.

1109265860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702155 (or 702153 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 1109265860 is about 33305.6430654026. The cubic root of 1109265860 is about 1035.1704885354.

The spelling of 1109265860 in words is "one billion, one hundred nine million, two hundred sixty-five thousand, eight hundred sixty".