110011990 has 96 divisors (see below), whose sum is σ = 234420480. Its totient is φ = 37055040.

The previous prime is 110011969. The next prime is 110011991. The reversal of 110011990 is 99110011.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110011991) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1641937 + ... + 1642003.

It is an arithmetic number, because the mean of its divisors is an integer number (2441880).

Almost surely, 2^110011990 is an apocalyptic number.

110011990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

110011990 is an abundant number, since it is smaller than the sum of its proper divisors (124408490).

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

110011990 is a wasteful number, since it uses less digits than its factorization.

110011990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 22.

The square root of 110011990 is about 10488.6600669485. The cubic root of 110011990 is about 479.1593938993.

The spelling of 110011990 in words is "one hundred ten million, eleven thousand, nine hundred ninety".