113043440 has 20 divisors (see below), whose sum is σ = 262826184. Its totient is φ = 45217344.

The previous prime is 113043419. The next prime is 113043481. The reversal of 113043440 is 44340311.

It is a happy number.

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

It is a super-3 number, since 3×113043440³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 706442 + ... + 706601.

Almost surely, 2^113043440 is an apocalyptic number.

113043440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113043440 is an abundant number, since it is smaller than the sum of its proper divisors (149782744).

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

113043440 is a wasteful number, since it uses less digits than its factorization.

113043440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413056 (or 1413050 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 113043440 is about 10632.1888621299. The cubic root of 113043440 is about 483.5207559567.

Adding to 113043440 its reverse (44340311), we get a palindrome (157383751).

The spelling of 113043440 in words is "one hundred thirteen million, forty-three thousand, four hundred forty".