1109392879 has 36 divisors (see below), whose sum is σ = 1363724544. Its totient is φ = 899724672.

The previous prime is 1109392859. The next prime is 1109392897. The reversal of 1109392879 is 9782939011.

It is not a de Polignac number, because 1109392879 - 2⁵ = 1109392847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109392849) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3291799 + ... + 3292135.

Almost surely, 2^1109392879 is an apocalyptic number.

1109392879 is a deficient number, since it is larger than the sum of its proper divisors (254331665).

1109392879 is a wasteful number, since it uses less digits than its factorization.

1109392879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 1109392879 is about 33307.5498798696. The cubic root of 1109392879 is about 1035.2099985413.

The spelling of 1109392879 in words is "one billion, one hundred nine million, three hundred ninety-two thousand, eight hundred seventy-nine".