111849040 has 20 divisors (see below), whose sum is σ = 260049204. Its totient is φ = 44739584.

The previous prime is 111849037. The next prime is 111849041. The reversal of 111849040 is 40948111.

It can be written as a sum of positive squares in 2 ways, for example, as 46949904 + 64899136 = 6852^2 + 8056^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111849041) by changing a digit.

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, 698977 + ... + 699136.

Almost surely, 2^111849040 is an apocalyptic number.

111849040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111849040 is an abundant number, since it is smaller than the sum of its proper divisors (148200164).

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

111849040 is a wasteful number, since it uses less digits than its factorization.

111849040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398126 (or 1398120 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 111849040 is about 10575.8706497385. The cubic root of 111849040 is about 481.8117869633.

The spelling of 111849040 in words is "one hundred eleven million, eight hundred forty-nine thousand, forty".