1120724779 has 16 divisors (see below), whose sum is σ = 1196937216. Its totient is φ = 1045699200.

The previous prime is 1120724777. The next prime is 1120724797. The reversal of 1120724779 is 9774270211.

It is a cyclic number.

It is not a de Polignac number, because 1120724779 - 2¹ = 1120724777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120724771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1775794 + ... + 1776424.

It is an arithmetic number, because the mean of its divisors is an integer number (74808576).

Almost surely, 2^1120724779 is an apocalyptic number.

1120724779 is a deficient number, since it is larger than the sum of its proper divisors (76212437).

1120724779 is a wasteful number, since it uses less digits than its factorization.

1120724779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386.

The product of its (nonzero) digits is 49392, while the sum is 40.

The square root of 1120724779 is about 33477.2277675437. The cubic root of 1120724779 is about 1038.7227846069.

The spelling of 1120724779 in words is "one billion, one hundred twenty million, seven hundred twenty-four thousand, seven hundred seventy-nine".