1111878416 has 80 divisors (see below), whose sum is σ = 2436594048. Its totient is φ = 487065600.

The previous prime is 1111878401. The next prime is 1111878431. The reversal of 1111878416 is 6148781111.

It is an interprime number because it is at equal distance from previous prime (1111878401) and next prime (1111878431).

It is a super-2 number, since 2×1111878416² = 2472547223933338112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1111878416.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735101 + ... + 736611.

Almost surely, 2^1111878416 is an apocalyptic number.

1111878416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111878416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1218297024).

1111878416 is an abundant number, since it is smaller than the sum of its proper divisors (1324715632).

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

1111878416 is a wasteful number, since it uses less digits than its factorization.

1111878416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 1674 counting only the distinct ones).

The product of its digits is 10752, while the sum is 38.

The square root of 1111878416 is about 33344.8409202983. The cubic root of 1111878416 is about 1035.9825332595.

The spelling of 1111878416 in words is "one billion, one hundred eleven million, eight hundred seventy-eight thousand, four hundred sixteen".