1115779042 has 16 divisors (see below), whose sum is σ = 1914115392. Its totient is φ = 477853200.

The previous prime is 1115779039. The next prime is 1115779051. The reversal of 1115779042 is 2409775111.

It is a junction number, because it is equal to n+sod(n) for n = 1115778992 and 1115779010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7084 + ... + 47767.

It is an arithmetic number, because the mean of its divisors is an integer number (119632212).

Almost surely, 2^1115779042 is an apocalyptic number.

1115779042 is a deficient number, since it is larger than the sum of its proper divisors (798336350).

1115779042 is a wasteful number, since it uses less digits than its factorization.

1115779042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56313.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 1115779042 is about 33403.2789109093. The cubic root of 1115779042 is about 1037.1925768794.

The spelling of 1115779042 in words is "one billion, one hundred fifteen million, seven hundred seventy-nine thousand, forty-two".