1109405740 has 24 divisors (see below), whose sum is σ = 2330464752. Its totient is φ = 443626560.

The previous prime is 1109405723. The next prime is 1109405741. The reversal of 1109405740 is 475049011.

It is not an unprimeable number, because it can be changed into a prime (1109405741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82147 + ... + 94693.

It is an arithmetic number, because the mean of its divisors is an integer number (97102698).

Almost surely, 2^1109405740 is an apocalyptic number.

1109405740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1109405740 is an abundant number, since it is smaller than the sum of its proper divisors (1221059012).

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

1109405740 is a wasteful number, since it uses less digits than its factorization.

1109405740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16977 (or 16975 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1109405740 is about 33307.7429436460. The cubic root of 1109405740 is about 1035.2139988627.

The spelling of 1109405740 in words is "one billion, one hundred nine million, four hundred five thousand, seven hundred forty".