111398480 has 20 divisors (see below), whose sum is σ = 259001652. Its totient is φ = 44559360.

The previous prime is 111398473. The next prime is 111398537. The reversal of 111398480 is 84893111.

It can be written as a sum of positive squares in 2 ways, for example, as 88435216 + 22963264 = 9404^2 + 4792^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 111398480.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696161 + ... + 696320.

Almost surely, 2^111398480 is an apocalyptic number.

111398480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111398480 is an abundant number, since it is smaller than the sum of its proper divisors (147603172).

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

111398480 is a wasteful number, since it uses less digits than its factorization.

111398480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392494 (or 1392488 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 111398480 is about 10554.5478349383. The cubic root of 111398480 is about 481.1639576315.

The spelling of 111398480 in words is "one hundred eleven million, three hundred ninety-eight thousand, four hundred eighty".