1109042532 has 72 divisors (see below), whose sum is σ = 3196674936. Its totient is φ = 321168384.

The previous prime is 1109042513. The next prime is 1109042533. The reversal of 1109042532 is 2352409011.

1109042532 is a `hidden beast` number, since 1 + 1 + 0 + 90 + 42 + 532 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 40144896 + 1068897636 = 6336^2 + 32694^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1109042496 and 1109042505.

It is not an unprimeable number, because it can be changed into a prime (1109042533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61743 + ... + 77654.

It is an arithmetic number, because the mean of its divisors is an integer number (44398263).

Almost surely, 2^1109042532 is an apocalyptic number.

1109042532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1109042532 is an abundant number, since it is smaller than the sum of its proper divisors (2087632404).

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

1109042532 is a wasteful number, since it uses less digits than its factorization.

1109042532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139437 (or 139432 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1109042532 is about 33302.2901915169. The cubic root of 1109042532 is about 1035.1010137354.

The spelling of 1109042532 in words is "one billion, one hundred nine million, forty-two thousand, five hundred thirty-two".