1109232540 has 288 divisors, whose sum is σ = 3886209600. Its totient is φ = 253808640.

The previous prime is 1109232533. The next prime is 1109232581. The reversal of 1109232540 is 452329011.

1109232540 is a `hidden beast` number, since 1 + 1 + 0 + 92 + 32 + 540 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2711856 + ... + 2712264.

Almost surely, 2^1109232540 is an apocalyptic number.

1109232540 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 1109232540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1943104800).

1109232540 is an abundant number, since it is smaller than the sum of its proper divisors (2776977060).

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

1109232540 is a wasteful number, since it uses less digits than its factorization.

1109232540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517 (or 512 counting only the distinct ones).

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

The square root of 1109232540 is about 33305.1428461131. The cubic root of 1109232540 is about 1035.1601236544.

The spelling of 1109232540 in words is "one billion, one hundred nine million, two hundred thirty-two thousand, five hundred forty".