1111699920 has 160 divisors (see below), whose sum is σ = 3586734720. Its totient is φ = 284497920.

The previous prime is 1111699907. The next prime is 1111699951. The reversal of 1111699920 is 299961111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1468182 + ... + 1468938.

It is an arithmetic number, because the mean of its divisors is an integer number (22417092).

Almost surely, 2^1111699920 is an apocalyptic number.

1111699920 is a gapful number since it is divisible by the number (10) 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 1111699920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1793367360).

1111699920 is an abundant number, since it is smaller than the sum of its proper divisors (2475034800).

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

1111699920 is a wasteful number, since it uses less digits than its factorization.

1111699920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 39.

The square root of 1111699920 is about 33342.1642968779. The cubic root of 1111699920 is about 1035.9270929548.

The spelling of 1111699920 in words is "one billion, one hundred eleven million, six hundred ninety-nine thousand, nine hundred twenty".