1116408019 has 4 divisors (see below), whose sum is σ = 1121326344. Its totient is φ = 1111489696.

The previous prime is 1116408001. The next prime is 1116408101. The reversal of 1116408019 is 9108046111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9108046111 = 39749 ⋅229139.

It is a cyclic number.

It is not a de Polignac number, because 1116408019 - 2⁵ = 1116407987 is a prime.

It is a super-2 number, since 2×1116408019² = 2492733729775008722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1116403019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2458822 + ... + 2459275.

It is an arithmetic number, because the mean of its divisors is an integer number (280331586).

Almost surely, 2^1116408019 is an apocalyptic number.

1116408019 is a deficient number, since it is larger than the sum of its proper divisors (4918325).

1116408019 is an equidigital number, since it uses as much as digits as its factorization.

1116408019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4918324.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 1116408019 is about 33412.6924835458. The cubic root of 1116408019 is about 1037.3874325831.

The spelling of 1116408019 in words is "one billion, one hundred sixteen million, four hundred eight thousand, nineteen".