11998110 has 16 divisors (see below), whose sum is σ = 28795536. Its totient is φ = 3199488.

The previous prime is 11998067. The next prime is 11998121. The reversal of 11998110 is 1189911.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 399937 = 11998110 / (1 + 1 + 9 + 9 + 8 + 1 + 1 + 0).

It is a congruent number.

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, 199939 + ... + 199998.

It is an arithmetic number, because the mean of its divisors is an integer number (1799721).

Almost surely, 2^11998110 is an apocalyptic number.

11998110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11998110 is an abundant number, since it is smaller than the sum of its proper divisors (16797426).

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

11998110 is a wasteful number, since it uses less digits than its factorization.

11998110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399947.

The product of its (nonzero) digits is 648, while the sum is 30.

The square root of 11998110 is about 3463.8288063933. The cubic root of 11998110 is about 228.9308283800.

The spelling of 11998110 in words is "eleven million, nine hundred ninety-eight thousand, one hundred ten".